Photo of an elderly woman receiving a vaccine

Medicine’s David Canaday speaks about declining COVID-19 antibody levels in high-risk populations

How the immune system fights invaders like the coronavirus

Healthline: David Canaday, professor at the School of Medicine, said that waning antibody levels, coupled with the lower starting point for nursing home residents, are particularly concerning for this group because they may be frail or have other chronic health conditions. “This huge drop in antibodies puts them at continued high risk, and even higher risk, due to those extra conditions,” he said. “This means a higher risk of requiring hospitalization or of passing away.”