Evidence began to accumulate that COVID-19 can be more lethal in individuals with clinical conditions that weaken immune function. As regular physical activity (PA) knowingly improves immunity,1 a ...

There are hygiene tips to reduce the likelihood of getting sick. Public health officials are warning that the U.S. could be ...

This flu season has seen a surge in infections, with hospitalizations quadrupling in a month. Lower immunity and low ...

people's immunity would be kind of confused because it would look so different from everything we've seen in the past three years." Getty Images Some researchers who study Covid-19 in wastewater ...

China said Monday it was "extremely unlikely" COVID-19 came from a laboratory, after the CIA said it believed the virus had more likely come from a lab rather than natural transmission.

But with scattered reports of recovered cases testing positive again, a lot of people are wondering if it's possible to develop immunity at all. So, can you catch COVID-19 twice? The thing is ...

And here's why. If you had COVID in the past, you do have some protection. There's natural immunity. And a lot of people are talking about it. The problem is, it's very variable. And by that ...

Maria Van Kerkhove, WHO’s Covid-19 technical lead ... of taking part in a “coordinated effort … to ignore natural immunity and suppress dissenting opinions.” Research has showed that ...

Fake "Covid-19 immunity boosters" are being sold over the ... Abbas Panjwani, a researcher at Full Fact, said: "During a pandemic, it is natural and perhaps understandable for people to seek ...

Robert F. Kennedy Jr. made claims during his Senate confirmation hearing on issues including vaccines, pesticides and Lyme ...