As more cases of the new coronavirus are diagnosed throughout the US (currently, there are 423 <a href="https://www.cdc.gov/coronavirus/2019-ncov/cases-in-us.html" id ...

Long COVID isn't uncommon. The U.S. Centers for Disease Control and Prevention defines long COVID as a chronic condition that occurs after an infection and lasts for at least three months. The Mayo ...

Those infected with the flu are most contagious during the first three days, the CDC said. In some cases, however, people can ...

NEW YORK -- Two encouraging studies suggest that people who recovered from COVID-19 had immune responses to the virus long after antibodies faded, even up to one year later. The findings may help put ...

Five years ago, COVID was all we could think about. Today, we’d rather forget about lockdowns, testing queues and social distancing. But the virus that sparked the pandemic, SARS-CoV-2, is still ...

In the United States, more than 72 million people, or 21% of the population, have received at least one dose of the Covid vaccine, according to data from the Centers for Disease Control. And President ...

"We cannot promise 100% chance of success," a government official said. Since the onset of the coronavirus outbreak, a vaccine has been widely regarded as the best path toward reopening society and ...