Records show that a top U.S. regulator rejected the recommendations of agency experts and limited the use of Covid vaccines.

According to a new study published in The Lancet Infectious Diseases, the XFG variant has four key mutations and displays ...

Cases of a new COVID variant have been reported in the UK. The strain has been dubbed 'Stratus' and there are two variants in circulation – XFG and the spin-off XFG.3 According to the UK Health ...

Recent vaccination announcements have led to some confusion. Four physicians weigh in on who should get vaccinated and when ...

Levels of the new XFG and XFG.3 variants are "rapidly growing" and now account for 40 per cent of Covid-19 cases in England ...

The World Health Organization’s expert group says the origin of COVID-19 remains inconclusive, though most evidence still ...

WHO Director-General Tedros Adhanom Ghebreyesus said it was a “moral imperative” to determine how COVID began, noting that ...

The World Health Organization said on Friday that efforts to determine the origins of SARS-CoV-2, the virus that caused the ...

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 ...

WHO’s Tedros says ‘all hypotheses must remain on the table’ after critical information not provided to investigators.

The World Health Organization's probe into the cause of COVID-19 has not resulted in a definitive reason, with its ...

All hypotheses on how the COVID-19 pandemic began remain open, the World Health Organization said Friday, following an ...