Omicron, a new study has revealed that those who have been infected with COVID subvariant BA.1 are less likely to get infected with BA.2.
subvariant. This is because BA.1 version of the Omicron coronavirus variant provides strong protection against the latter. The study also indicates that widely circulating BA.2 is unlikely to cause a major wave of infections in countries that have already witnessed an Omicron peak led by the previously identified subvariant.
The authors - Troels Lillebaek, a molecular epidemiologist at the State Serum Institute in Copenhagen, and his team looked into Denmark’s medical registries to find out whether re-infection by the BA.2 subvariant can create havoc.
They saw the BA.2 subvariant has been proliferating in Denmark since the start of this year, and currently comprises about 88% of all coronavirus cases.