Science News Roundup: Omicron variant may have picked up a piece of common-cold virus

Following is a summary of current science news briefs.

Omicron variant may have picked up a piece of common-cold virus

The Omicron variant of the virus that causes COVID-19 likely acquired at least one of its mutations by picking up a snippet of genetic material from another virus - possibly one that causes the common cold - present in the same infected cells, according to researchers. This genetic sequence does not appear in any earlier versions of the coronavirus, called SARS-CoV-2, but is ubiquitous in many other viruses including those that cause the common cold, and also in the human genome, researchers said.

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(With inputs from agencies.)