In Singapore, the B1617 variant seems to be the cause of a recent spike in cases, owing to a cluster at the airport from foreign arrivals, despite most airport employees being fully vaccinated. Contact tracing has also become much harder because high vaccination rates could presumably mean more carriers are asymptomatic.
Curious to see how the spread of this variant would affect US reopening plans.
Isn’t the more likely reason that about 75% of people in Uttar Pradesh had already been exposed to the virus or vaccinated by late July, as shown by the national serological survey findings?
https://indianexpress.com/article/explained/explained-icmr-covid-fourth-serosurvey-findings-7413949/
Other north indian states also show similar drastic drops, and I doubt all of them administered prophylactic invermectin.