The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new ...

Let’s clear up one misconception. Viruses aren’t like deodorant on your armpit or a fart in a room. They don’t necessarily automatically get weaker over time. In fact, often it’s quite the opposite.

Over the last couple of months researchers tracking emerging SARS-CoV-2 variants have started noticing something strange. No one new variant has looked like taking over but instead a variety of ...

People with compromised immune systems face a new winter of discontent as the ever-mutating omicron virus threatens to outrun the preventive monoclonal antibody cocktail that hundreds of thousands of ...

After all the controversy over the past few years about gain-of-function research on viruses, especially the Covid-19 virus, I thought this kind of work was on hold, at least in the U.S. Indeed, the ...

Georgia State University researchers have found that the Alpha, Beta and Delta variants of SARS-CoV-2 were substantially more fatal in mouse models than the original strain of the virus that causes ...

Manal Mohammed is a senior lecturer of medical microbiology at the University of Westminster. Since the COVID variant Omicron emerged in late 2021, it has rapidly evolved into multiple subvariants.

New research may explain why so many vaccinated and boosted individuals experienced breakthrough coronavirus infections caused by the omicron variant. Researchers at Johns Hopkins Medicine and the ...

For more than two years, Cathy Baron and Sara Alicia Costa managed to duck the coronavirus. But despite their being fully vaccinated and boosted, the Omicron variant finally caught them. Baron is an ...

Researchers in France have reported the first compelling genetic evidence of a recombinant SARS-CoV-2 virus that contains elements of both the omicron coronavirus variant and the delta variant.

In a recent study posted to the bioRxiv* preprint server, researchers reported a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron and Delta recombinant virus in the United ...

Throughout the pandemic, the virus that causes COVID-19 has been evolving fast, blindsiding the world with one variant after another. But the World Health Organization hasn't given a SARS-CoV-2 ...