Girls exposed to certain endocrine-disrupting chemicals (EDCs) may be more likely to start puberty early, according to new research published in Endocrinology, the flagship basic science journal of the Endocrine Society. EDCs mimic, block or interfere with hormones in the body’s endocrine system.
There has been an alarming trend toward early puberty in girls, suggesting the influence of chemicals in our environment. Early puberty is associated with an increased risk of psychosocial problems, obesity, diabetes, cardiovascular disease, and breast cancer.
“We conducted a comprehensive screen of 10 000 environmental compounds with extensive follow-up studies using human brain cells that control the reproductive axis, and our team identified several substances that may contribute to early puberty in girls,” said study author Natalie Shaw, MD, MMSc, of the National Institute of Environmental Health Sciences (NIEHS).
Those substances include musk ambrette, which is a fragrance used in some detergents, perfumes, and personal care products, and a group of medications called cholinergic agonists.
“More research is needed to confirm our findings,” noted Shaw. “But the ability of these compounds to stimulate key receptors in the hypothalamus – the gonadotropin-releasing hormone receptor [GnRHR] and the kisspeptin receptor [KISS1R] – raises the possibility that exposure may prematurely activate the reproductive axis in children.”
According to the research team, musk ambrette is potentially concerning because it can be found in personal care products, and some rat studies have suggested it can cross the blood-brain barrier. Children are less likely to encounter cholinergic agonists in their daily lives.
Canadian and European regulations restrict musk ambrette use because of its potential toxicity, and the U.S. Food and Drug Administration removed the fragrance from its “generally recognized as safe” list. Yet it is still available on the market in some personal care products.
“This study suggests that, out of an abundance of caution, it is important for parents to only use personal care products for their children that are federally regulated,” Shaw said.
As part of the study, the research team screened a Tox21 10 000-compound library of licensed pharmaceuticals, environmental chemicals and dietary supplements against a human cell line overexpressing GnRHR or KISS1R. They conducted follow-up analysis using human hypothalamic neurons and zebrafish, finding that musk ambrette increased the number of GnRH neurons and GnRH expression.
“Using human hypothalamic neurons and zebrafish provides an effective model for identifying environmental substances that stimulate the KISS1R and GnRHR,” said co-author Menghang Xia, PhD, from the National Center for Advancing Translational Sciences (NCATS) “This study was a multidisciplinary team effort, and it showed that we can efficiently reduce the time and cost of assessing environmental chemicals for their potential effects on human health.”
Using hypertonic saline nasal drops can reduce the length of the common cold in children by two days, according to a study presented at the European Respiratory Society (ERS) Congress in Vienna, Austria [1]. They can also reduce the onward transmission of colds to family members.
The results of the ELVIS-Kids randomised controlled trial were presented by Professor Steve Cunningham from Child Life and Health, University of Edinburgh, UK.
He said: “Children have up to 10 to 12 upper respiratory tract infections, what we refer to as colds, per year, which have a big impact on them and their families. There are medicines to improve symptoms, such as paracetamol and ibuprofen, but no treatments that can make a cold get better quicker.”
ELVIS-Kids Chief Investigator Dr Sandeep Ramalingam, consultant virologist, NHS Lothian, Edinburgh, UK, had noted that salt-water solutions are often used by people in South Asia, as nasal irrigation and gargling, to treat a cold and wanted to explore if this clinical benefit could be replicated in a large study.
The research team recruited 407 children aged up to six years to a study where they were given either hypertonic saline ~2.6% (salt-water) nasal drops or usual care when they developed a cold. Overall, 301 children developed a cold; for 150 of these, their parents were given sea salt and taught to make and apply salt-water nose drops to the children’s noses (three drops per nostril, a minimum of four times per day, until well) and 151 children had usual cold care.
Professor Cunningham explains: “We found that children using salt-water nose drops had cold symptoms for an average of six days where those with usual care had symptoms for eight days. The children receiving salt water nose drops also needed fewer medicines during their illness.
“Salt is made up of sodium and chloride. Chloride is used by the cells lining the nose and windpipes to produce hypochlorous acid within cells, which they use to defend against virus infection. By giving extra chloride to the lining cells this helps the cells produce more hypochlorous acid, which helps suppress viral replication, reducing the length of the virus infection, and therefore the duration of symptoms.”
When children got salt-water nose drops, fewer households reported family members catching a cold (46% vs 61% for usual care). Eighty-two per cent of parents said the nose drops helped the child get better quickly and 81% said they would use nose drops in the future.
Professor Cunningham added: “Reducing the duration of colds in children means that fewer people in their house also get a cold, with clear implications for how quickly a household feels better and can return to their usual activities like school and work etc.
“Our study also showed that parents can safely make and administer nose drops to their children and therefore have some control over the common cold affecting their children.”
Professor Alexander Möeller is Head of the ERS Paediatric Assembly and Head of the Department for Respiratory Medicine at the University Children’s Hospital Zurich, Switzerland, and was not involved in the research. He said: “This is an important study that is the first of its kind to investigate the impact of salty nose drops in children with colds. Although most colds usually don’t turn into anything serious, we all know how miserable they can be, especially for young children and their families.
“This extremely cheap and simple intervention has the potential to be applied globally; providing parents with a safe and effective way to limit the impact of colds in their children and family would represent a significant reduction in health and economic burden of this most common condition.”
The team hope to further investigate the effect of saltwater nose drops on wheeze during colds, after initial results from this study showed that children who received the drops had significantly fewer episodes of wheeze (5% vs 19%).
Reference
[1] Abstract no: OA1985 “A randomised controlled trial of hypertonic saline nose drops as a treatment in children with the common cold (ELVIS-Kids trial)”, by Dr Sandeep Ramalingam et al; Presented in session “Advancements in paediatric infectious respiratory health” at 15:45–17:00 CEST on Sunday 8 September 2024.
New research published in Developmental Medicine & Child Neurology reveals that children born preterm are more likely to screen positive for autism than full-term children.
For the study, 9725 toddlers were screened at 15-, 18-, or 24-month well child visits using a test called the Modified Checklist for Autism in Toddlers, Revised.
Screening results that were positive for autism were most common among children born extremely preterm (51.35%) and least common among those born full-term (6.95%). Subsequent evaluations after positive screening revealed the following rates of autism diagnoses: 16.05% of extremely preterm, 2.00% of very preterm, 2.89% of moderately preterm, and 1.49% of full-term births.
Utilising the screening test at ages unadjusted for early birth was effective for identifying autism, as only a small number of preterm children (1.90%) who screened positive with the test did not receive a diagnosis of autism or other developmental delay following evaluation.
“With this research, we are hoping to help dissipate doubts that clinicians might have about the utility of screening for autism in toddlers born preterm,” said corresponding author Georgina Perez Liz, MD, of the AJ Drexel Autism Institute. “Low-cost, universal public health strategies such as screening can lead to less disparity in autism detection and help children on the spectrum start specific intervention and supports earlier in life.”
New research published in the journal iSCIENCE has revealed new insights into early sensorimotor features and cognitive abilities of toddlers who are later diagnosed with Autism Spectrum Disorder (ASD). The research, led by Kristina Denisova, a professor of Psychology and Neuroscience at the CUNY Graduate Center and Queens College, takes an important step toward better understanding ASD so that more precise, individually tailored interventions can be developed.
ASD, typically diagnosed around the ages of 4 to 5 years, is a neurodevelopmental disorder with complex and varied presentations, including atypical communication and restrictive and repetitive patterns of behaviour. Moreover, cognitive abilities are often lower in individuals with ASD. Despite the established link between lower intelligence quotient (IQ) in infancy and a future diagnosis of ASD, not all children with ASD exhibit lower cognitive abilities during infancy. The study addresses the critical gap in knowledge regarding the early features that differentiate children with varying cognitive abilities who later develop ASD.
The research team investigated the relationship between movement and cognitive abilities in toddlers before their ASD diagnosis, both during sleep and wakefulness. The study posed two key questions: Do ASD children with lower IQ exhibit altered movement during sleep compared to children with higher IQ? Additionally, are lower motor skills during wakefulness characteristic of lower-IQ children with ASD compared to those of higher-IQ ASD toddlers?
The research was conducted in two stages. In the first sample, the team examined sensorimotor features obtained from sleep functional magnetic resonance imaging (fMRI) in 111 toddlers with ASD. In the second, independent sample, they analysed sensorimotor functioning during wakefulness in over 1000 toddlers with ASD, categorised by lower vs higher cognitive abilities.
The findings revealed that toddlers with ASD and lower IQs have significantly altered sensorimotor features compared to toddlers with ASD and higher IQs. Interestingly, the sensorimotor features of higher-IQ ASD toddlers were nearly indistinguishable from typically developing (TD) toddlers. This suggests that a higher IQ may confer resilience to atypical sensorimotor functioning, and conversely, that poor sensorimotor functioning may be a key marker for lower IQ in childhood autism.
Moreover, the study found that lower-IQ ASD toddlers consistently exhibited lower gross motor skills across various age milestones (6, 12, 18, 24, and 30 months). This disruption in early sensorimotor learning during critical developmental periods indicates a potential vulnerability in the brain’s motor control circuitry, associated with lower cognitive abilities in toddlers who later receive an ASD diagnosis.
“The implications of these findings are far-reaching,” said Denisova. “They underscore the need for more precise, tailored interventions for children with ASD, particularly those with lower cognitive abilities. Interventions for lower-IQ autistic children may need to focus on enhancing both sensorimotor and cognitive skills, while interventions for higher-IQ autistic children might prioritise leveraging their strengths to mitigate potential mental health consequences.”
Denisova emphasised the importance of future research in this area, particularly involving underserved families who face barriers in accessing early intervention services.
A good night’s sleep is essential for children’s health and development, but childhood sleep patterns may also be linked to future substance use. A new study, led by a team of Penn State researchers, found that adolescents were more likely to have consumed alcohol or tried marijuana by age 15 if they went to bed later and slept fewer hours during childhood and adolescence. The team published their findings in Annals of Epidemiology.
“The study suggests that there might be some critical ages when sleep can be a target for intervention,” said Anne-Marie Chang, associate professor of biobehavioural health at Penn State and senior author of the paper. “If we improve sleep in the school-age population, not only could that show improvements in sleep health but in other aspects like the decision to engage in risky behaviours like alcohol and other substance use.”
The research team explored childhood sleep at different developmental stages within the same sample of children to see if there’s an impact on later substance use, which few studies have investigated. They focused on two different facets of sleep health – total duration of sleep and time of sleep or bedtime. The researchers explained that if children, especially school-aged children, go to bed later, it could affect their ability to sleep well.
“Sleep is multifaceted. It’s important for children because it helps with growth and development. The brain is more plastic during younger ages and you want healthy sleep to support neural development,” said David Reichenberger, co-lead author and who earned his doctoral degree in biobehavioural health at Penn State during the time of the research. “Poor sleep health could have downstream effects on their physical health as well as decision making, which could in turn be related to their decision to engage in substance use.”
The study drew on data from 1514 children in the Future of Families and Child Wellbeing Study, a diverse longitudinal birth cohort of children from 20 cities across the United States. Parents reported their child’s regular weekday bedtime at ages three, five and nine. They also reported their child’s sleep duration at ages five and nine.
When the research team evaluated the relationship between childhood bedtime and sleep duration with future alcohol and marijuana use as teens, they found a longitudinal association. Teens were 45% more likely to try alcohol by age 15 if they had a later bedtime at age nine when compared to other children with earlier bedtimes at age nine. However, bedtime at age five wasn’t associated with future alcohol use, nor was sleep duration at ages five or nine. When it came to marijuana use, later bedtime at age five was associated with 26% increased odds of trying marijuana by age 15, while sleeping an hour less at age nine was associated with 19% increased odds of trying marijuana by age 15.
The research team also examined data from adolescents at age 15, who self-reported their bedtime, sleep duration and alcohol and marijuana use. They found that teens with a later bedtime had a 39% greater chance of drinking alcohol and a 34% greater chance of trying marijuana. Sleeping one hour less was associated with 28% increased odds of ever trying alcohol but wasn’t associated with marijuana use.
“Sleep at ages closer to adolescence is the most crucial in terms of future substance use risk. It’s that stage of development when children are rapidly changing and their brain is maturing,” Reichenberger said, noting that previous research by other groups suggests that shorter sleep duration and later bedtimes may increase impulsivity and impair decision making, which could influence substance use choices.
The findings highlight the critical role of sleep across multiple aspects of long-term health and wellbeing, researchers said. For school-age children, creating an environment that’s conducive for sleep and establishing an age-appropriate bedtime are key elements for cultivating good sleep.
“Exploring the connection between sleep and substance use is a critical area of research because we continue to struggle with an epidemic of opioid addiction and substance use,” Chang said. “It’s an important area to continue to research and to disseminate our research findings to the broader population, families and health care professionals.”
Young children often display similar eating behaviour as their parents, with a parent’s own eating style influencing how they feed their children, research at Aston University has shown.
The work, published in the journal Appetite, suggests that parents can help to shape healthy eating behaviour in their children both by how they themselves eat, as well as how they feed their children.
A team led by Professor Jacqueline Blissett at Aston University, asked parents to assess their own eating behaviour and looked for associations between those behaviours and those of their children.
The team grouped parents into four eating styles – ‘typical eating’, ‘avid eating’, ‘emotional eating’ and ‘avoidant eating’. Typical eaters, who made up 41.4% of the sample, have no extreme behaviours. Avid eaters (37.3%) have high food approach traits such as eating in response to food cues in the environment and their emotions, rather than hunger signals. Emotional eaters (15.7%) also eat in response to emotion but do not enjoy food as much as avid eaters. Avoidant eaters (5.6%) are extremely selective about food and have a low enjoyment of eating.
The direct links between child and parent behaviour were particularly clear in parents with avid or avoidant eating behaviours, whose children tended to have similar eating behaviour. Parents who had avid or emotional eating styles were more likely to use food to soothe or comfort a child, who then in turn displayed avid or emotional eating traits. Where parents with avid or emotional eating traits provided a balanced and varied range of foods, the child was less likely to display the same behaviour.
The research follows on from previous work by the team, which identified the four main types of eating behaviour in children and linked parental feeding practices to those traits.
“Parents are a key influence in children’s eating behaviour but equally, parents have the perfect opportunity to encourage a balanced diet and healthy eating from a young age in their children. Therefore, it is important to establish how a parent’s eating style is associated with their children’s eating style and what factors could be modified to encourage healthy relationships with food.”
She and the team will now look at developing an intervention to support parents to use other ways to regulate emotions, model healthy eating, and create a healthy home food environment. This could help to prevent less favourable eating behaviours being passed down the generations from parent to child.
A recent randomised clinical trial published in Developmental Medicine & Child Neurology assessed whether injections of botulinumtoxin-A in calf muscles benefit children with cerebral palsy.
“We hypothesised that injections with botulinumtoxin-A in the calf muscles would make walking easier, caused by improved ankle joint functioning following spasticity reduction,” the authors wrote.
In the trial, one botulinumtoxin-A treatment was not superior to placebo in making walking easier (measured as a reduction in energy cost or improved walking capacity); however, there was some evidence of a delayed improvement in energy cost. Moreover, there was some evidence of a decrease in calf pain intensity. No serious adverse events related to botulinumtoxin-A treatment were recorded.
A marker used to measure immunisation coverage is to look at whether children received three doses of the vaccine against diphtheria, tetanus and pertussis. Photo by Mufid Majnun on Unsplash
By Elri Voigt
New data from the World Health Organization (WHO) and UNICEF show that globally childhood immunisation coverage stalled in 2023, while in South Africa it decreased. Elri Voigt unpacks the new data and asks local experts to put it in context.
A new report found that vaccination coverage rates around the world have not yet returned to levels seen in 2019, before the COVID-19 pandemic disrupted immunisation programmes.
There has been no meaningful change in immunisation coverage between 2022 and 2023, according to the WHO and UNICEF report published in July. It means progress in immunisation coverage has effectively stalled, leaving 2.7 million additional children who are either unvaccinated or under-vaccinated compared to pre-pandemic levels in 2019.
A marker used to measure immunisation coverage is to look at whether children received three doses of the vaccine against diphtheria, tetanus and pertussis – referred to as DTP3. Global coverage for DTP3 stalled at 84% in 2023, according to the report.
At the same time, the number of children worldwide who have not received any vaccinations has increased. We refer to these kids as zero-dose children. Ten countries account for 59% of all zero-dose children, with the global number in 2023 rising to 14.5 million compared to 13.9 million in 2022, according to the report.
Coverage slightly down in SA
Data from the report showed a slight decrease for a number of outcome measures in South Africa between 2022 and 2023. It was one of 14 countries in the African region that saw a decrease in coverage for DTP1 (the first dose of the vaccine for diphtheria, tetanus and pertussis), slipping from 87% in 2022 to 81% in 2023. Coverage for DTP3 also decreased, falling from 85% in 2022 to 79% in 2023.
South Africa was also one of 10 countries in the African region that saw a decrease in coverage for the first dose of the measles vaccine, and was singled out by the report as having the sharpest decline in coverage in the region between 2022 and 2023. Measles coverage dropped from 86% in 2022 to 80% in 2023.
Commenting on the accuracy of the new data, Professor Shabir Madhi, Dean at the Faculty of Health Sciences at the University of Witwatersrand (Wits), said it used administrative data, which can bias the estimates. He explained that the report bases vaccine coverage on the number of vaccines procured by government and deployed to facilities. For example, if a facility gets 100 doses of the measles vaccine and ends up discarding 50 doses, that doesn’t necessarily get reported.
The WHO acknowledges the potential for data inaccuracies. It stated that they calculate the estimated percentage of immunisation coverage by dividing the number of doses administered to a target population by the estimated number of people in that target population.
Madhi said a more accurate picture of childhood immunisation coverage in the country can be found in National Vaccine coverage surveys, like the Expanded Programme on Immunisation (EPI) National Coverage survey. Spotlight previously reported on results from the most recent EPI survey conducted in 2019.
Madhi said it appears the new report did not incorporate data from the EPI survey. However, even without this data, he said the WHO estimates are not too far off the local data. He remarked that he doesn’t feel “too strongly either way” about the accuracy of the WHO data since the bottom line is vaccine coverage in the country is lagging.
“Fluctuations in immunisation coverage are not uncommon,” Dr Haroon Saloojee, a professor of Child Health at Wits University told Spotlight. “One should not make too much of a fall or increase in coverage rates over one year, unless it is drastic.”
Data from the WHO report for vaccine coverage in South Africa between 2018 and 2022 had actually showed an overall upward trend, which was “promising”, according to Saloojee. However, he said the latest data from the report “holds no good news for South Africa” because the dip in coverage in 2023 was noteworthy.
How does SA compare?
“South Africa’s performance is moderate when compared globally, and poor compared to other high-middle income countries,” said Saloojee. “Considering that South Africa is a high-middle-income country, we should be performing much better in all our health indicators.”
He pointed out that countries in a similar bracket like Cuba and Uruguay have achieved high immunisation coverage through robust healthcare systems and effective public health policies.
Regarding zero-dose children, the report ranked South Africa 6th worst in the African region. In 2022, the country ranked 13th. With a total of 220 000 zero-dose children, the country accounted for 3% of all zero-dose children in the African region. Nigeria had the highest percentage at 32% of all zero-dosed children in the region, followed by Ethiopia with 14%.
‘Dysfunctionality of primary healthcare’
Apart from the international comparisons, Madhi pointed out that South Africa is not meeting its own targets of having at least 90% of children in each district fully vaccinated.
The EPI survey found that only seven of the 52 districts in the country were able to achieve the national target of 90% of children fully vaccinated under one year of age. Together, the data from the survey and the WHO clearly shows that childhood immunisation targets are not being met in the country.
For Madhi, the results from the EPI survey “speaks to dysfunctionality of primary health care in the country”. He said the immunisation of children, which is the bedrock of primary healthcare when it comes to children, acts as a “canary in the mine with regards to how well primary healthcare is working”.
He said South Africa is a leader in the field when it comes to evaluating and introducing vaccines to the public immunisation programme. But when it comes to implementation, for the vast majority of districts we “are falling completely flat on our face and coming short in terms of reaching our own targets”.
Implications for children
The health implications for children who are not unvaccinated or only partially vaccinated are significant.
“They are less protected against what can be life threatening diseases. And those life-threatening diseases include diseases such as measles, but also other life-threatening diseases such as pneumonia,” Madhi said.
“We’re selling ourselves short as a country in addition to actually compromising the health of children by not ensuring that we’re doing everything that’s possible to actually get children to be vaccinated,” Madhi added. “It also comes with other consequences, so it sort of lends South Africa to be more prone to outbreaks.”
Saloojee added that it is also likely that children who are not fully vaccinated are “not receiving many of the other health, education and social development services all children require and that is being provided by government, such as early childhood development services and child support grants”.
The reasons for immunisation coverage lagging are complex and the responsibility for fixing the problem lies with more than just one entity. Spotlight previously reported on some of the reasons children are remaining unvaccinated or under-immunised as identified by the EPI survey.
Madhi said there needs to be a fundamental relook at the country’s immunisation programme. Proper governance structures need to be put in place and the programme will need to be implemented all the way down to the sub-districts. There is also a need for real-time data and monitoring of that data so interventions can be done when children are missing their immunisations. He also suggested ring-fencing funds for vaccines, at either a national or provincial level, to ensure that money earmarked for vaccines are used for that purpose so as to ensure less stock-outs.
“The immunisation programme hasn’t changed much from what I can gather over the past 20 years, let alone the past 10 years. So we can’t expect a different outcome if the strategy that we’re using which has failed is the strategy that you continue pursuing,” Madhi said.
Saloojee said the National Department of Health can play a pivotal role in strengthening the immunisation programme by “providing leadership, resources, and policy support”. He said that to his knowledge the health department is currently preparing a national immunisation strategy to take us to 2030, but the draft is not up to scratch. The strategy, he says, will need to offer clear objectives, establish realistic indicators of, and targets for, measuring success, and attract a fully funded mandate.
Spotlight asked the National Department of Health for comment on the new WHO report and how it plans to respond to improve immunisation coverage. While the department acknowledged our questions, they did not provide comment by the time this article was first published.
Siblings of autistic children have a 20% chance of being autistic themselves – about seven times higher than the rate in infants with no autistic siblings, according to new research published in Pediatrics.
The study, by UC Davis MIND Institute distinguished professor Sally Ozonoff and the Baby Siblings Research Consortium, is based on a large, diverse group of families at research sites across the United States, Canada, and the United Kingdom. It confirms the same research group’s 2011 findings about the likelihood of autism in siblings, and adds news information suggesting it is more common, not less, in historically underrepresented groups.
Increasing autism rates prompt new study
“The rate of autism diagnosis in the general community has been steadily increasing since our previous paper was published,” Ozonoff explained. Ozonoff has studied the recurrence of autism in families for decades.
Ozonoff noted that there have also been changes in autism diagnostic criteria over the past decade. In addition, there is a growing awareness of autism in girls.
“So, it was important to understand if these had any impact on the likelihood of autism recurrence within a family,” she said.
The 2011 paper found a recurrence rate of 18.7%, while the new paper found a rate of 20.2% – a small but not significant increase.
“This should reassure providers who are counseling families and monitoring development. It should also help families plan for and support future children,” Ozonoff said.
A larger, more diverse study
The new study included data from 1605 infants at 18 research sites. All infants had an older autistic sibling.
“This study was much larger than the first and included more racially diverse participants,” Ozonoff said. The original study included 664 children.
Researchers followed the children from as early as six months of age for up to seven visits. Trained clinicians assessed the children for autism at age three using the Autism Diagnostic Observation Schedule (ADOS-2), a well-validated tool. The data were gathered from 2010 to 2019.
Sex of first autistic child, multiple autistic siblings key factors
Researchers found that the sex of the first autistic child influenced the likelihood that autism would recur within a family.
“If a family’s first autistic child was a girl, they were 50% more likely to have another child with autism than if their first autistic child was a boy,” Ozonoff said. “This points to genetic differences that increase recurrence likelihood in families who have an autistic daughter.”
The researchers also found that a child with multiple autistic siblings has a higher chance of autism (37%) than a child with only one sibling on the spectrum (21%).
The sex of the infant was also associated with the likelihood of familial recurrence. If the later-born infant was a boy, they were almost twice as likely as a girl to be diagnosed themselves.
“The familial recurrence rate if the new baby was a boy was 25%, whereas it was 13% if the new baby was a girl,” Ozonoff explained. “This is in line with the fact that boys are diagnosed with autism about four times as often as girls in general.”
The researchers found that race and the mother’s education level were likely factors as well. In non-white families, the recurrence rate was 25%. In white families, the recurrence rate was about 18%. In families where the mother had a high school education or less, recurrence was 32%. With some college, the rate was 25.5%, and with a college degree the rate was 19.7%. When the mother had a graduate degree, it dropped to 16.9%.
“These findings are new – and critical to replicate,” Ozonoff explained. “They do mirror the recent CDC findings that autism is more prevalent in children of historically underrepresented groups.” She noted that this reversed a longtime trend of lower prevalence in those groups.
Most importantly, said Ozonoff, if these findings are replicated, they may indicate that there are social determinants of health that may lead to higher rates of autism in families. She emphasized that this study was not designed to answer those critical questions, and more research is needed.
Tracking outcomes
Unlike the first study, the researchers also tracked families who dropped out of the three-year study to see if their outcomes differed from those who did. “We wondered whether families who stayed in the study may have had children who were more affected — making them more worried about their development,” she explained.
That could have biased the estimates of recurrence to be higher than they really were. The current study showed that was not the case.
“So, now we have two large, independent studies that report familial recurrence in the same range,” Ozonoff said. “This reinforces how important it is that providers closely monitor the siblings of autistic children for delays in social development or communication. This is especially true in families who have reduced access to care, because early diagnosis and intervention are critical.”
Children lining up to see the dentist at the Ekuphumleni Community Hall, near Whittlesea. (Photo: Sue Segar/Spotlight)
By Sue Segar
The Keready project uses mobile clinics to take healthcare services to rural areas. Sue Segar spent time with the project as they took eye, dental, and other healthcare services to communities in the Eastern Cape.
In the small Eastern Cape town of Bizana, hundreds of children stream into a large hall at the Oliver and Adelaide Tambo Regional Hospital on a brisk Tuesday morning in May. There’s a festive but orderly vibrancy in the air – the scene made all the more colourful by different school uniforms and young voices from tiny six-year-olds to learners in their late teens.
They’ll be assessed, and helped by doctors from Keready – an organisation offering mobile health services in many far-flung communities lacking healthcare services.
For weeks leading up to today, outreach teams from Keready’s mobile clinic operation have gone from school to school, asking teachers to identify children with eye problems. Today they arrived on various forms of transport – some on the back of a bakkie – from deeply rural communities as far as 100 kms away. Most of the children have little access to health services, particularly eye care, so the response is substantial.
I have travelled here with three doctors and an admin assistant from Keready’s East London office. They join other healthcare staff, including from the health department, for this two-day mega outreach in partnership with the Umbono Eye Project.
“Over the past three months, school educators identified 492 learners from 26 schools who have impaired vision,” says Ewan Harris, a pharmacist and consultant by training and a former deputy director-general of education in the Eastern Cape, who heads up Keready’s Eastern Cape team. “We will attend to these learners and if necessary, provide them with prescription spectacles and meds.”
Ntombizedumo Bhekizulu, a teacher at the Mhlabuvelile Senior Primary School at Ludeke Mission, has come with 16 children, “the ones who struggle to see what we write on the chalkboard”.
Bulelwa Mqhayi from Nomathebe Primary School in Isithukutezi adds: “It’s great that they can help these kids. Most of the parents are unemployed and on social grants and don’t have the money to take the kids to specialists. The clinics don’t help us with eye problems.”
The youngsters will also have a range of other health checks and will be sent to see one of the doctors on site if found to be in need of further health assistance. The health department has deployed a mobile dental unit, an audiologist, as well as a medic to provide advice on family planning and reproductive health.
A child being signed in for a health check at Bizana. (Photo: Sue Segar/Spotlight)
Before arriving at the registration desk, the children have already been given deworming tablets and a Vitamin A supplement, provided by the health department, while each group is given a health talk on age-dependent topics ranging from hand hygiene, to TB and HIV.
After handing in their registration and consent forms, the children go through basic vision screening tests by a team of “eye care ambassadors” – young people supported with employment opportunities through the Social Employment Fund, which is managed by the Industrial Development Corporation.
If the school children fail the eye screening test, they are sent to see optometrist Johan van der Merwe.
In between patients, he tells Spotlight he’s already found a number of “low vision candidates” and one who might need to be placed in a special school. “I’ve just done a full refraction on one child … It’s clear that he has a lens defect,” says Van der Merwe. Placing his hand on the head of another small boy, he continues: “This little one has been very quiet … he’s struggling to communicate. He needs thick lenses, or an operation by a specialist.”
Van der Merwe, who has been an optometrist for 22 years, joined the Umbono Eye Project permanently almost two years ago after volunteering his services once a week. “Before I joined, I was working in a mall in East London. I never saw sunlight.” He adds: “It has been very rewarding to make a difference to these children.”
Optometrist Johan van der Merwe assesses a child at Bizana. (Photo: Sue Segar/Spotlight)
At another mobile site, health department dentist, Dr Unathi Mponco, has been busy with youngsters suffering from a range of dental ailments. “There were sore teeth, rotten teeth, mobile teeth, and some children had very swollen gums…. Whatever I can treat on the mobile truck, I deal with here – otherwise if they need X-rays or the cases are more serious, I refer them to the hospital’s dental unit for a comprehensive exam,” she says.
In a mobile van outside the hall, health department medic Siyabonga Chonco has been consulting teenage girls all day offering family planning services. “The Alfred Nzo district has the highest rate of teen pregnancies in the Eastern Cape. We are trying hard to curb teenage pregnancy,” he says.
The teens are invited to ask any questions and to say whether they are sexually active and ready to take contraceptives. Chonco says in almost every case, he senses great relief from the learners to speak to an impartial young person. “They tell me that, at the clinics, the older nurses can be quite harsh…. They open up to me, especially with questions about contraceptives.”
He says broadly, young people are interested in long-term contraceptives. “They don’t want to have to go to clinics all the time.” Some will walk away with a contraceptive implant – a flexible plastic rod about the size of a matchstick that is placed under the skin of the upper arm to prevent pregnancy over three years – while others will choose injectables or pills.
At the end of two days in Bizana, the team has seen nearly 750 youngsters from about 40 schools, with 432 having had their eyes screened and 52 eligible for specs. For six of those children, the spectacles will be life-changing, says Van der Merwe.
Doctors Eileen Kaba and Anda Gxolo consulting with their little patients. (Photo: Sue Segar/Spotlight)
Apart from a few “high” prescriptions that might have to be ordered from overseas, a member of the team will deliver the specs personally to each learner, an occasion which is a highlight for the team. “When we first put the glasses on their faces, you just see smiles. The parents are so thankful. It makes this so worthwhile,” says Van der Merwe.
Keready is working closely with the provincial departments of health and education. The NGO recently received the Eastern Cape’s Batho Pele Award for enhancing healthcare in the province.
“We could never reach all these children as government,” says TD Mafumbatha, mayor of the Winnie Madikizela-Mandela municipality, adding “this is what collaboration looks like”.
But where did it all begin?
Keready, loosely translated as “We are ready”, was set up in February 2022 to encourage young people to vaccinate against COVID-19.
One of the people behind Keready is Harris, a pharmacist and consultant by training and a former deputy director-general of education in the Eastern Cape. Harris was working as a consultant for the Fort Hare Institute of Health, when he was asked to help design the Eastern Cape’s COVID vaccine rollout strategy.
“The COVID programme was a success because, through advanced digitisation, we were able to map the 84 000 communities in South Africa to their nearest schools, clinics and hospitals,” he says.
And it is out of that awareness of the spatial distribution of healthcare needs that Keready was born.
After the COVID programme ended, Harris, as national lead for the project, was tasked with setting up Keready’s offices in four provinces, including employing provincial leads, and staff as well as doctors and nurses. “Our vision was to give young doctors the opportunity to manage at the highest level, under our guidance.”
Implemented by DG Murray Trust (a South African philanthropic foundation) in partnership with the National Department of Health, Keready is funded by the German government through the KfW Development Bank.
The project reached full scale late last year with 46 mobile health clinics in four provinces: Eastern Cape (8), Gauteng (16), KwaZulu-Natal (13), and the Western Cape (9).
These mobile clinics move into different communities every day. At times they use a loud-hailer to attract people. Sometimes they are based at schools, other times at taxi ranks and other hubs of activity.
People of all ages who visit the clinics are provided with a range of health services, including screenings and tests for HIV, TB and diabetes, as well as given family planning advice and immunisations. Medication is prescribed, and, where possible, dispensed on the spot.
Keready also runs a WhatsApp line where youth can ask young doctors and nurses any health-related questions and get straightforward, non-judgemental answers.
When learning about Keready during a walkthrough of exhibition stands set up at the Birchwood Hotel in Boksburg during the 2023 Presidential Health Summit, President Cyril Ramaphosa described the movement as “NHI on Wheels” because of its efforts in addressing universal health coverage.
From Bizana to Whittlesea
Two weeks later, I am again travelling with the same Keready team – this time to Whittlesea, outside Queenstown. Over two days, we visit the Ekuphumleni Community Hall and Kopana School in Ntabethemba. A highlight of this outreach is that teenage girls will be supplied with sanitary pads, thanks to a collaboration with pharmaceutical and healthcare company Johnson & Johnson.
On day one, hundreds more pupils than anticipated arrive. School principals were over-enthusiastic in spreading the word of the outreach resulting in taxi-loads of pupils from unexpected schools arriving. Irate teachers try to negotiate a way for their pupils to be seen.
Teacher Nolitha Tuta tells me many of the children she’s brought are from child-headed households and some have had little to no access to healthcare services.
While waiting in the queue, a mother of a child from Bhongolethu Primary School describes how she walked for hours to bring her child for eye testing.
Children line up for their health checks at the Kopana School in Ntabethemba. (Photo: Sue Segar/Spotlight)
Despite having waited until the end of the day, students from Zweledinga High end up being driven back home at sunset without being assisted.
After two days in Whittlesea, nearly 1 200 pupils from 36 schools have arrived. Nine schools were turned away. Nearly 700 learners have been screened for eye conditions, with 88 eligible for specs and four referred to an ophthalmologist.
The doctors look exhausted. Dr Anda Gxolo says over the past two days numerous children presented with ear problems. There were also long lines for dental care this time.
Despite the long hours, Dr Phumelele Sambumbu, who manages five of the eight Keready mobile clinics in the Eastern Cape, says she loves her work. “I come from these parts – from a village between Cofimvaba and Tsomo. My old grandmother is bedridden. I know first-hand how difficult it is to have access to care when you’re from a village like that and when you suffer from ailments like that. The idea of bringing health services to people who would otherwise struggle to access them is what drives me,” she says.
Mapping the need
Based on its relationship with the department of health, Keready has ambitious plans to expand its grassroots outreach programmes to help narrow the gaps in healthcare nationally.
A map on the wall of Keready’s office shows the number of government clinics in the Eastern Cape relative to schools. There are around 700 clinics in the province, but over 5000 schools (which works out to more than seven schools per clinic). Nationally, the ratio is similar with around 3 400 clinics and 25 000 schools.
It’s no surprise then that, according to Harris, staff on Keready’s 46 mobile clinics in the four provinces where it operates cannot keep up with demand for their services.
“Based on our mapping of the national population, we know there are 2 500 communities that don’t have reasonable access to a clinic. Just to deal with the gaps, we need 2 500 mobile clinics. We can tell you exactly where in the country to put them,” says Harris.
To reach ill people who are ill but don’t know it, Keready aims for nurse-supervised ambassadors to do door to door visits in communities to check who has TB, HIV and hypertension. “We have digitised every street and every house by satellite. Each house would be marked off; if TB’s picked up, it is mapped,” says Harris.
Plans for the door to door programme are well under way, he says. “In the Eastern Cape, Keready has partnered with the Small Projects Foundation to train 80 young people [as nurse-supervised ambassadors] from the Industrial Development Corporation’s Social Employment Fund to do health testing house to house.”
Eventually, says Harris, there could be 80 people linked to each of the 46 mobile clinics, meaning that a total of 3 680 trained people could be going from door to door.
“Going forward we’d want to find the disease before the disease finds us – TB, HIV, hypertension, diabetes and general growth issues [in children] are the core areas we will address in this programme,” he says.
But the extent to which Keready can deliver on its ambitious expansion plans will depend on funding and to what extent government continues to implement services using mobile clinic outreach programmes. The German financial contribution to the Keready project comes to an end in September. “We are working day and night to get more funding,” says Harris. He says they will soon be meeting with potential donors.
