Some people who have previously been infected with COVID-19 and later received a vaccine may develop a powerful immunity to the virus and variants of it that emerge, recent research suggests. These ...

Get it early, develop immunity, get back to work: some wonder As COVID-19 numbers climb precipitously, health care workers, first responders and the countless individuals working in "essential ...

A medical expert explains whether people who have already recovered from COVID-19 should still get vaccinated. Learn how ...

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 ...

The new research provides evidence that Covid reinfections can increase the risk of long-term health consequences. By Pam Belluck Pam Belluck has covered long Covid since the condition first emerged.

Mixing vaccines could offer a stronger immune boost, preliminary data suggests. With the FDA gearing up to decide if all Americans need booster shots, some researchers are pointing to preliminary data ...

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. The ...

Add Yahoo as a preferred source to see more of our stories on Google. Early on, experts were warning that coronavirus was something we would have to live with for a long time. Lockdowns, face masks ...

Emerging evidence suggests that the widely used diabetes drug metformin, when taken early in a Covid-19 infection, may ...