Mumbai: Three cases of BA.4, 1 of BA.5 Omicron sub-variants of COVID foundThree patients of BA.4 and one of BA.5 Omicron sub-variants of coronavirus have been found in Mumbai and all of them have already recovered from the infection, the Maharashtra health department said on Monday.
BA.4 and BA.5 are sub-variants of the highly transmissible Omicron strain of the coronavirus which had triggered the third wave of the pandemic in the country.