Danish study find natural immunity from Omicron infection holds for subvariants.

People who contract the Omicron virus variant are unlikely to get re-infected by a subvariant of the virus Danish researchers published in pre-print paper.

Emerging data indicate BA.2, a subvariant of Omicron, is more transmissible—possibly 30 percent more, according to the World Health Organization.

But an analysis of data from national surveillance systems in Denmark, one of approximately 10 countries where BA.2 has become predominant, suggests reinfections are rare. [1]