Study: Kids have stronger COVID-19 antibody response than adults

A new prospective study of 252 families with members diagnosed as having mild COVID-19 in Italy finds that, while all age-groups had detectable SARS-CoV-2 antibodies up to 1 year after infection, children—especially those younger than 3 years—had higher antibody levels than adults at all intervals tested. In the study, published today in JAMA Network Open, a team led by University of Padua researchers enrolled 902 unvaccinated patients at a COVID follow-up clinic from Apr 1, 2020, to Aug 31, 2021. Families were included in the study if they had children younger than 15 years and at least one member who had tested positive for COVID-19 at least 4 weeks earlier.