Regular booster vaccinations and prompt treatment with the antiviral drug paxlovir are the best way for older Americans to prevent serious illness.
Biden has technically had COVID-19 twice. He first tested positive for the virus in July 2022. He tested positive a second time a few days after his quarantine period, which was a “rebound” case. It is unclear whether Paxlovid causes a rebound in COVID-19, but rebound can occur even without taking the drug. The CDC recommends taking the antiviral drug, especially for high-risk patients such as the elderly, because evidence shows that the benefits outweigh the risks of a rebound effect.
People at high risk of developing severe symptoms can get a booster shot this summer, but now is not the time for healthy young people to get another shot.
High-risk people are eligible to receive three doses of the vaccine per year, which Schaffner said is effective in preventing cases severe enough to require hospitalization.