Variant-driven COVID-19 cases are increasing and a few U.S. schools and businesses have temporarily reinstated mask mandates to mitigate the virus’s spread. Now, some are sounding the alarm that more ...

Yearly Covid-19 Booster Recommendations in Canada, Europe, and Australia. Although the rapid development of multiple Covid-19 vaccines in 2020 represents a major scientific, medical, and regulatory ...

As much as we’d like to think that COVID-19 is behind us, the virus isn’t going anywhere. Health officials continue to recommend that people get vaccinated for both COVID-19 and influenza every year ...

Senior Correspondent Even relatively easy bouts with COVID-19 can still take a toll on the immune system, according to a paper published Mar. 15 in the journal Immunity—particularly on T-cells, which ...

The Covid-19 pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2(SARS-CoV-2) stands as the fastest-spreading and most extensive global health crisis that humanity has faced in a century ...