In patients with COVID-19, preexisting immunity and Omicron infection were associated with reduced disease severity and upper respiratory symptom presentation.

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A new COVID-19 variant named "Nimbus" has been detected in the U.S. and is spreading rapidly. Here's what to know about ...

More than 20% of children and young people in Aotearoa New Zealand are experiencing significant persistent health symptoms ...

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

A new strain of COVID-19, XFG, is spreading rapidly across the world, including in the United States. Anecdotally, people who ...

From a persistent sore throat that feels like razor blades to severe muscle aches, discover some unusual signs of the new COVID-19 variant NB.1.8.1 spreading globally.

IRISH people are being warned about a new strain of Covid-19 as cases rise in the country. The two new strains of the ...

The Stratus COVID-19 variant, which includes the XFG and XFG.3 strains, currently accounts for around 30 per cent of COVID-19 ...

Spikevax is now approved for all adults aged 65 years and older, and individuals aged 6 months through 64 years at increased risk for COVID-19 disease ...

NB.1.8.1 is one of the latest variants of COVID-19, a "slightly upgraded version" of the LP.8.1 variant that is prominent right now, Subhash Verma, microbiology and immunology professor at the ...

Digestive issues like IBS and functional dyspepsia rose among U.S. adults during the COVID-19 pandemic.   Researchers ...