No change in Omicron BA.4, BA.5 severity or transmissibility so far : WHO - Besides getting vaccinated, scientists have advised people to continue wearing masks - especially in crowded indoor spaces.
While there have been a few cases of new Omicron sub-variants BA.4 and BA.5, so far there is no change seen in the severity or transmissibility, the World Health Organisation has said.The new sub-variants have to date been detected in South .