By Katherine Ellen Foley and David Lim

Biden’s new positive test is an example of a rebound Covid-19 case, a phenomenon that has happened in some cases after people take Paxlovid.

Biden’s new positive test is an example of a rebound Covid-19 case, a phenomenon that has happened in some cases after people take Paxlovid.

Biden’s new positive test is an example of a rebound Covid-19 case, a phenomenon that has happened in some cases after people take Paxlovid.

Biden’s returning symptoms are an example of a rebound Covid-19 case, a phenomenon that has happened in some cases after people take Paxlovid.

Executives have said they hope the shot will see uptake in individuals who have expressed hesitancy toward other Covid-19 vaccines or are allergic to components of the others’ ingredients.