Every few months for the first two years of the pandemic the public learned the name of a new coronavirus variant that had emerged and was more adept at infecting us or causing severe disease. Ten ...

A more contagious subvariant of Omicron, called BA2, is rapidly spreading across the globe and is now the top variant in at ...

The dominant variant of the coronavirus has proved to be not only staggeringly infectious, but an evolutionary marvel. By Carl Zimmer By November 2021, nearly two years after the coronavirus emerged ...

The Omicron variant spreads easier than other variants of coronavirus, and people can get it twice. Reinfection is possible even if a person has already had this virus or is fully vaccinated. Several ...

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Inside the lung tissue, Omicron has been reported to be less efficient at infecting cells than delta or the original version of the virus. New Delhi: As India braces for the peak of the third Covid ...