The proportion was estimated at approximately 3% in late May. A highly contagious variant of the novel coronavirus that was initially identified in India now accounts for about 58% of all COVID-19 ...

CDC director Rochelle Walensky told the US Senate that the highly transmissible variant is now the dominant strain in the United States.

Estimates show the variant accounts for over 51% of all new cases nationwide. A highly contagious variant of the novel coronavirus that was initially identified in India is now the dominant strain in ...

Israel has the world's highest proportion of its population fully vaccinated, but authorities are worried their success may be short-lived.

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

A new investigation published in JAMA examines how COVID-19 vaccination affects maternal and perinatal outcomes among ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

The delta variant of the coronavirus is increasing its hold on North Dakota, helping push active COVID-19 cases near 1,500 and virus-related hospitalizations over 50. Active cases statewide on Friday ...

NEW YORK (WABC) -- Encouraging new data suggests the omicron variant, while highly contagious, is less severe than the delta variant. The variant has now been found in 21 states, as the U.S. continues ...

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 ...

Multivariable analyses confirmed that vaccination remained associated with lower hospitalization risk in both periods after controlling for comorbid conditions. Compared with vaccinated patients, the ...