Delta

In May, federal health officials in the United States said that fully vaccinated people no longer needed to mask up, even indoors. The advice set the stage for a national reopening that continues to gain momentum.But that was before the…

Throughout the pandemic, masks were among the most controversial public health measures in the United States, symbolizing a bitter partisan divide over the role of government and individual freedoms.Now, with a new variant of the…

Medical worker Mantra Nguyen installs a new oxygen mask for a patient in the Covid-19 Intensive Care Unit (ICU) at the United Memorial Medical Center in Houston, Texas.Nakamura go | Getty Images News | Getty Images.Delta "greatest threat"…

As India reopens after a devastating second wave of coronavirus infections, virologists worry that another, potentially more virulent version of the virus could accelerate the onset of a third wave within a few months.The version known…

White House senior medical advisor Dr. Anthony Fauci said Tuesday the highly contagious Delta variant is the "greatest threat" to the nation's attempt to eradicate Covid-19.Delta, which was first identified in India, now accounts for about…

The super-contagious Delta variant of the coronavirus is now responsible for about one in every five Covid-19 cases in the United States, and its prevalence has doubled in the last two weeks, heath officials said on Tuesday.First identified…

A joint government and NHS public information display will indicate that a Covid-19 variant concern has been identified locally and will provide guidance to residents on June 11, 2021 in Hounslow, UK.Mark Kerrison | In pictures | Getty…

Given the surge in vaccinations and declining death rates related to Covid-19 in Europe and other parts of the world, many people are planning to travel this summer and beyond. However, experts say the fast-circulating delta variant is a…

President Joe Biden speaks about reaching 300 million COVID-19 vaccination shots, in the State Dining Room of the White House, Friday, June 18, 2021, in Washington.Evan Vucci | APPresident Joe Biden on Friday doubled down on his…

A mobile Covid-19 vaccination center in front of Bolton City Hall in Bolton, where the number of cases of the Delta variant identified for the first time in India was relatively high.Peter Byrne | PA pictures | Getty ImagesThe variant of…