Children were less likely than adults to acquire a COVID-19 infection from an index case, a meta-analysis found.
Across 32 contact tracing or population testing studies comparing SARS-CoV-2 prevalence in children and adults, children younger than 14 were less likely to be infected from an index case overall (odds ratio 0.56, 95% CI 0.37-0.85), and specifically in studies examining household transmission (OR 0.41, 95% CI 0.22-0.76), reported Russell M. Viner, PhD, of the UCL Great Ormond Street Institute of Child Health in London, and colleagues.
However, adolescents 14 and older did not have a significantly lower risk of infection compared with adults (OR 1.23, 95% CI 0.64-2.36), they wrote in JAMA Pediatrics.
Seroprevalence appeared to be lower in children than adults, especially for children younger than 14, who had 48% lower odds of infection compared with young adults 20 and over, they reported.
While “we found few data that were