The U.S. approved a new COVID-19 vaccine made by Moderna late Friday but with limits on who can use it. It's not a replacement for the company’s existing shot, but a second option. Video above: Doctor ...

A third wave of COVID-19 is inevitable, according to a top health official at Hamilton Health Sciences (HHS), and Hamilton could re-enter lockdown by the end of March. Dr. Dominik Mertz, HHS medical ...

Add Yahoo as a preferred source to see more of our stories on Google. Public health officials are monitoring a new strain of COVID-19, now called the cicada, because of its long incubation period.

The headlines about the COVID-19 variants can be intimidating. So, we wanted to drill down on exactly what is and is not unusual or concerning about them. Dr. Carlos Del Rio with the Infectious ...

Share on Pinterest Experts say variants of the virus that causes COVID-19 replicate quicker in people who are not vaccinated. David McNew/Getty Images Experts say the number of unvaccinated people in ...

COVID-19 is seen on the rise again in the United States as late summer sets in full-swing, and while health officials plan to restrict booster shots. Experts say that although cases of the new ...

In recent weeks, the omicron variant has exploded in the U.S. and other parts of the world. Its disproportionate and sometimes devastating impacts on the unvaccinated — and the possibility of new ...

According to Dr. Vishnuvardhan, Director of Medical Education, the World Health Organization (WHO) is monitoring the RF.5 variant as part of its routine genomic surveillance of SARS-CoV-2 ...

Omicron, the newest coronavirus variant, was also the quickest to be labeled a "variant of concern" by the World Health Organization and the US Centers for Disease Control and Prevention because of ...

THE rise and spread of new variants of the coronavirus are seen as ushering in a dangerous new phase of the covid-19 pandemic. But from the virus’s perspective, nothing has changed. It is just doing ...