The Delta variant wave of coronavirus is sweeping over the U.S., leading to a surge in cases and Covid-19 hospitalizations. As a lagging indicator, deaths have begun to increase significantly as ...

The wave of Covid-19 in the U.S. fueled by the hyper infectious delta variant continues to subside, with new infections and hospitalizations down dramatically from their peaks in September ...

There, hospitalization rates are much lower than in previous waves of infection, and the people hospitalized are not as sick as those infected with the beta or delta variants, said Salim Abdool ...

Faust noted that a small number of deaths during the omicron wave could have been caused by delta infections that occurred several weeks earlier. In other words, a person could've been infected ...

By the time the highly contagious Delta variant fueled a wave across the country this summer, vaccines were widely available, shifting the pattern once again. “Vaccines have clearly changed ...

Many parts of the country have gotten through their delta wave; we've seen prevalence come way down. On the back end of this delta wave, there was a presumption by me and others that delta would ...

The omicron wave blew case rates and hospitalizations to new national records as it hit the Northeast in January. But it has already turned elsewhere. The omicron variant pushed the nation’s ...

The study did not involve cases from the latest omicron surge. Both vaccination and a prior infection provided protection against another infection and hospitalization due to COVID-19 during the ...