- Some people in study also received serology testing for COVID antibodies
- Less children are diagnosed with COVID-19 against older people: Study
- Children are also less likely to spread COVID-19 to others: Study
Jerusalem: People under the age of 20 are about half as likely to be infected with COVID-19 as adults, and they are also less likely to transmit the disease to others, according to a new modelling study. Previous studies have found differences in symptoms and the clinical course of COVID-19 in children compared to adults. Researchers have also reported that a lower proportion of children are diagnosed with COVID-19 compared to older age groups.
To better understand susceptibility and infectivity of children, researchers from the University of Haifa and colleagues fitted mathematical and statistical models of transmission within households to a dataset of COVID-19 testing results from the dense city of Bnei Brak, Israel.
The new study, published in the journal PLOS Computational Biology, covered 637 households whose members all underwent PCR testing for active infection in spring of 2020. Some people in the study also received serology testing for SARS-CoV-2 antibodies. By adjusting model parameters to fit the data, the researchers found that people under 20 years of age are 43 per cent less susceptible to COVID-19 as those over 20.
With an infectivity estimated at 63 per cent of that of adults, children are also less likely to spread COVID-19 to others, they said. The researchers also found that children are more likely than adults to receive a negative PCR result despite actually being infected, that could explain worldwide reports that a lower proportion of children are diagnosed compared to adults. Future computational research could explore transmission dynamics in other settings, such as nursing homes and schools, the researchers said.
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NDTV – Dettol Banega Swasth India campaign is an extension of the five-year-old Banega Swachh India initiative helmed by Campaign Ambassador Amitabh Bachchan. It aims to spread awareness about critical health issues facing the country. In wake of the current COVID-19 pandemic, the need for WASH (Water, Sanitation and Hygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign highlights the importance of nutrition and healthcare for women and children to prevent maternal and child mortality, fight malnutrition, stunting, wasting, anaemia and disease prevention through vaccines. Importance of programmes like Public Distribution System (PDS), Mid-day Meal Scheme, POSHAN Abhiyan and the role of Aganwadis and ASHA workers are also covered. Only a Swachh or clean India where toilets are used and open defecation free (ODF) status achieved as part of the Swachh Bharat Abhiyan launched by Prime Minister Narendra Modi in 2014, can eradicate diseases like diahorrea and become a Swasth or healthy India. The campaign will continue to cover issues like air pollution, waste management, plastic ban, manual scavenging and sanitation workers and menstrual hygiene.