Summary According to an October preprint study, the first confirmed sample of PJ.2.1 was detected on May 2, 2026, in Ontario, Canada.
The variant was subsequently identified in other parts of Canada and, on June 30, in several US states.
; as well as Spain.
Summary According to an October preprint study, the first confirmed sample of PJ.2.1 was detected on May 2, 2026, in Ontario, Canada. The variant was subsequently identified in other parts of Canada and, on June 30, in several US states.; as well as Spain.
