A new variant of the Omicron strain of
the COVID-19 virus, called Xj, has been isolated for the first
time in Italy by a laboratory in Reggio Calabria.
The variant is "equivalent to Xe", the lab said.
Xj is a recombination of sub-variants of Omicron BA.1 and BA.2
and had hitherto been known only for a limited number of cases
registered in Finland at the end of March.
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