As the Delta variant sweeps the globe, scientists are learning more about why new versions of the coronavirus spread faster, and what this could mean for vaccine efforts. The spike protein ...

India's health ministry says studies showed that the so-called Delta plus variant - also known as AY.1 - spreads more easily, binds more easily to lung cells and is potentially resistant to ...

The original strain of the virus was displaced by the Alpha variant. Then we had Beta, then Delta and then Omicron. KP.2 is ...

A certain mutation in the COVID-19 Delta variant causes infected cells to form disruptive chunks in the lungs and leads to more serious symptoms of the disease, a research team said. If the cells ...

The Delta variant of the virus causing Covid-19 has caused infections to spike in the UK once more, preventing the planned relaxation of lockdown in England. But is it really faring worse than ...

And because the delta variant, first identified in India, can spread among vaccinated people, that extra layer of protection for recovered patients is probably helpful (SN: 7/30/21). Sign up for e ...

Researchers in Japan are calling for new vaccines to be developed to protect the public from breakthrough variants of the novel coronavirus, such as the highly contagious Delta strain that comes ...

The omicron relative now dominant in the U.S. is called XEC, which accounted for 45% of variants circulating nationally in the two-week period ending Dec. 21, the CDC said. Minnesota sees COVID-19 ...

Five years after the COVID-19 pandemic hit South Carolina and the U.S., it is still changing health care, from wastewater ...

The move, announced on Monday afternoon, comes amid a recent global surge in coronavirus cases sparked by the more infectious Delta variant. The world may never reach herd immunity against Covid ...