The World Health Organization said Wednesday that 23 countries across the world have reported cases of the highly mutated omicron Covid-19 variant.
“At least 23 countries from five of six WHO regions have now reported cases of omicron and we expect that number to grow,” WHO Director-General Tedros Adhanom Ghebreyesus told reporters during an update Wednesday in Geneva.
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SYDNEY, Nov 30 (Reuters) - The head of drugmaker Moderna (MRNA.O) said COVID-19 vaccines are unlikely to be as effective against the Omicron variant of the coronavirus as they have been previously,
A COVID-19 variant spreading in South Africa was dubbed "omicron" and classified a "variant of concern" by the World Health Organization on Friday, as the U.S. and other nations reacted to the newly discovered variant with travel restrictions.
