It's been less than a month since health officials reported the first known case of a new and more contagious coronavirus variant in Texas. The man, a Harris County resident, had no travel history.

Four theories could explain the variants' ability to jump from person to person. In recent months, new variants of the virus that causes COVID-19 have been popping up all over the world, and experts ...

"As these viruses continue to evolve, public health officials watch carefully to see whether new strains will be more easily ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A new COVID-19 strain, referred to as NB.1.8.1 or "Nimbus," first appeared in the U.S. sometime near the end of April and is ...

In Germany, “Nimbus” is currently the most prevalent coronavirus variant by far. Meanwhile, in Southeast Asia and gradually in Europe, another cloud-named variant is gaining significance: “Stratus” ...

In recent weeks, the omicron variant has exploded in the U.S. and other parts of the world. Its disproportionate and sometimes devastating impacts on the unvaccinated — and the possibility of new ...

Coronavirus cases may surge in the coming weeks, as they have every summer since the pandemic began five years ago, experts said. Getting vaccinated, masking, improving air quality and staying away ...

Read Latest News on Covid 19 along with top headlines and breaking news today. Also get Covid 19 Updates, Photos and Videos at Hindustan Times ...

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 ...

Coronaviruses not only use the machinery of the human cells they infect: they modify them to achieve optimal conditions to ...