 "omicron")
The BA.2 sub-lineage of the Omicron variant now makes up nearly a quarter of new Covid-19 infections in the US, according to the latest data of the US Centers for Disease Control and Prevention (CDC).
This data is up from around 1 in 10 new cases just a week prior, Xinhua news agency reported.
The BA.2 variant is spreading fast in the country, with infections nearly doubling every week, according to CDC data.
Early studies showed that BA.2 may be up to 30 per cent more transmissible than the original Omicron.
--IANS
int/shs
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