Pediatrics (AAP)Duration of Effective Antibody Levels After COVID-19

Antibodies against COVID-19 continue to perplex and confound physicians and research scientists. Although people who have gotten COVID-19 or been vaccinated against the respiratory disease develop a humoral immune response that protects them from reinfection, those antibodies decline over time, leaving people vulnerable to reinfection. Understanding why this happens is critically important to modeling how COVID-19 spreads through the general population, including children.