All you need to know about BF.7 Omicron sub-variant that has

All you need to know about BF.7 Omicron sub-variant that has triggered fresh Covid fears

As India gears up to fight a potential resurgence of the Covid virus in the country, the BF.7 Omicron sub-variant once again hogged the headlines as it is currently on the move in countries like China.

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