ATLANTA, Ga. — The delta variant that’s now the dominant strain of coronavirus in the U.S. appears to be as transmissible as chickenpox, according to an internal document from the Centers for Disease ...

Pregnant women who become infected with the delta variant are at increased risk of a stillbirth or dying during childbirth, according to two new studies published by the Centers for Disease Control ...

On Friday, the Centers for Disease Control and Prevention reported that the U.S. had seen an increase in COVID-19 hospitalizations in children and adolescents in recent weeks as the more contagious ...

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 ...

A new study released Wednesday by the Centers for Disease Control and Prevention says people who suffered a previous COVID-19 infection were protected from another infection or hospitalization during ...

The more contagious Delta variant of Covid-19 now makes up 83% of sequenced samples in the United States, US Centers for Disease Control and Prevention Director Dr. Rochelle Walensky said Tuesday.

As the delta COVID-19 variant continues to jeopardize progress against rising cases and hospitalizations around the world, the United States is shifting strategy when it comes to persuading ...

One thing we know for sure about SARS-CoV-2, the virus that causes COVID-19, is that it keeps changing. Since the start of the pandemic, we have seen several notable variants, including Alpha, Beta, ...

WASHINGTON -- President Joe Biden said Tuesday afternoon that a mandate to require all federal employees to be vaccinated is now "under consideration." Sources familiar with the discussion told ABC ...