The omicron BA.2 subvariant is inherently more contagious and better at evading vaccines than any other Covid strain, but vaccinated people don’t transmit it as easily as the unvaccinated, according to a Danish study published Sunday.

The new subvariant, which has rapidly become dominant in Denmark, spread more easily across all groups regardless of sex, age, household size and vaccination status, the study found.

The probability for spreading within a household was 39% for BA.2 versus 29% for BA.1, the original omicron strain that was dominant worldwide as of Jan. 19, according to the World Health Organization.

The study, led by a team of scientists affiliated with the University of Copenhagen and the Danish Health Ministry among other institutions, has not yet been submitted for peer review. Researchers have been publishing their findings before they are examined by other experts in the field due to the urgent nature of the pandemic.