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 delta variant has emerged as the dominant strain of the novel coronavirus in the United States, according to updated data from the Centers for Disease Control and Prevention (CDC). The CDC’s ...

(Reuters) — Infectious disease experts are weighing the need for booster shots of the Pfizer/BioNTech or Moderna mRNA-based vaccines for Americans who received Johnson & Johnson’s one-dose vaccine due ...

LONDON — Since the start of the coronavirus pandemic, the U.S. has been keeping a close eye on the U.K. Stream NBC 5 for free, 24/7, wherever you are. From its initial response to Covid-19 (questioned ...

With the CDC estimating that the delta variant accounts for more than 90% of new COVID cases in the U.S., scientists are still learning more about what makes this variant different from prior versions ...

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 ...

The Delta variant is expected to eclipse the Alpha variant in the next couple weeks, which worries health officials, said Rochelle Walensky, director of the Centers for Disease Control and Prevention.

A COVID-19 variant reported in more than two dozen other countries has been found in the United States, the Centers for Disease Control and Prevention said in a recent report. The variant, BA.3.2, was ...

The delta variant is the most closely watched coronavirus mutation yet and with good reason: It's more contagious than previous variants and there's evidence it increases the risk of hospitalization ...

Moderna on Tuesday released preliminary data indicating its vaccine is likely to hold up against several variants of concern, including the Delta variant, which is predicted to become the dominant ...