Recent Covid-19 waves have been accompanied by successively fewer cases of the inflammatory condition MIS-C in children. Researchers think they might know why.
President Biden called the availability of Covid-19 vaccines for young children a “monumental step,” speaking a few days after the CDC recommended that children as young as 6 months receive the newly authorized shots. Photo: Nicholas Kamm/AFP/Getty ImagesA serious inflammatory complication that strikes some children in the weeks following a Covid-19 infection has almost disappeared. A buildup of immunity andboth likely play a part, pediatric infectious-disease doctors and researchers said.
Multisystem inflammatory syndrome is afflicting far fewer children as a proportion of known Covid-19 cases than during earlier waves of the pandemic, according to data from the Centers for Disease Control and Prevention. The condition, also known as MIS-C, is similar to Kawasaki disease, another rare pediatric inflammatory condition.