"A lot of us were assuming that it was going to quickly take off in the United States just like it was doing in Europe and become the new dominant variant," says Nathan Grubaugh
, an associate professor of epidemiology at the Yale School of Public Health.
So far that hasn't happened. Instead, BA.2 has slowly, but steadily spread even as the omicron surge continued to dissipate.
Denmark also was the ones who removed mitigations right at the height of omicron. Claiming it was the subtype of omicron is a guess. Plus if it caused a wave it was incredibly short lived and on the way down