Those who’ve dodged COVID-19 for more than four years may have a newly discovered immune response to thank. The results stem from a challenge trial: At the height of the pandemic in 2021, scientists ...

Variant-driven COVID-19 cases are increasing and a few U.S. schools and businesses have temporarily reinstated mask mandates to mitigate the virus’s spread. Now, some are sounding the alarm that more ...

March 11 marks the fourth anniversary of the World Health Organization’s declaration that the COVID-19 outbreak was a pandemic. COVID-19 hasn’t gone away, but there have been plenty of actions that ...

Close-up of unrecognizable black woman holding KN95 face mask Senior Correspondent It's summer, and RSV and flu have come and gone. But, as ever, COVID-19 is different. Even though the pandemic may be ...

Yearly Covid-19 Booster Recommendations in Canada, Europe, and Australia. Although the rapid development of multiple Covid-19 vaccines in 2020 represents a major scientific, medical, and regulatory ...

Since May, highly contagious "FLiRT" coronavirus variants – a term for new mutations of Omicron – have been driving a rise in infections and emergency room trips. Virus levels at local wastewater ...

Overhead view of senior Asian woman carrying out a Covid-19 rapid lateral flow test at home. She is holding a positive Coronavirus rapid self test device, feeling worried Overhead view of senior Asian ...