Fear of the fast spreading Delta variant of Covid-19 and rising prices undermined Americans’ confidence in August, according ...

Victoria's current COVID outbreak took another turn last week when a new variant was discovered by health authorities. It's not clear whether this new "Delta" variant emerged from Victoria, New South ...

LONDON — A newly-discovered mutation of the delta variant is being investigated in the U.K. amid worries that it could make the virus even more transmissible and undermine Covid-19 vaccines further.

RICHMOND, Va. - As the CDC announced the highly contagious Delta variant represented more than 80 percent of sequenced COVID cases in the country Tuesday, Virginia health experts predicted the Delta ...

While the aggressive new Delta variant of coronavirus is spreading rapidly across the U.S., it is “entirely avoidable and entirely preventable if you get vaccinated,” Dr. Anthony Fauci told WTOP on ...

In late spring, the widespread availability of the COVID-19 vaccine and downward trends in infections caused many associations working remotely to target a September date to return to their offices.

The omicron variant of SARS-CoV-2 has most likely spread around the world already, but ineffective COVID-19 testing will continue to hamper scientists' ability to say anything definitive about the ...

The fast-spreading delta variant of the coronavirus has been gaining traction worldwide since it was first detected in India. It’s a version of the coronavirus that has been found in more than 80 ...

The World Health Organization and the Centers for Disease Control and Prevention have both designated beta as a “variant of ...

Brett Sutton says it’s of ‘significant concern’ and it has international authorities worried - but what is the dreaded new ...