The internal CDC document said the Delta variant was more transmissible than the viruses that cause MERS, SARS, Ebola, and the seasonal flu.

Covid-19 cases in the country are on the rise again. While infections had seen a drop in May with the infection rate coming down to 7.91 percent on the 29th of that month, the infection rates are back ...

Several COVID-19 variants are acting uniquely enough to qualify as a distinct strain. And you might have heard about one on ...

"The rules have changed. We have a different epidemic now that we did in May." Adding more insight into the CDC’s updated mask guidance, newly published details of the Provincetown outbreak raise ...

Vaccination linked to lower risk for hospitalization, critical care unit admission, preterm birth during delta and omicron periods ...