"During the COVID-19 pandemic, Bhattacharya has been an opponent of lockdowns and mask mandates. With Martin Kulldorff and Sunetra Gupta, he was a co-author in 2020 of the Great Barrington Declaration, which advocated lifting COVID-19 restrictions on lower-risk groups to develop herd immunity through infection, while promoting the promise that vulnerable people could be protected from the virus. The declaration was widely rejected, and was criticized as being unethical and infeasible by Tedros Adhanom Ghebreyesus, the director-general of the World Health Organization."
"During the COVID-19 pandemic, Bhattacharya has been an opponent of lockdowns and mask mandates. With Martin Kulldorff and Sunetra Gupta, he was a co-author in 2020 of the Great Barrington Declaration, which advocated lifting COVID-19 restrictions on lower-risk groups to develop herd immunity through infection, while promoting the promise that vulnerable people could be protected from the virus. The declaration was widely rejected, and was criticized as being unethical and infeasible by Tedros Adhanom Ghebreyesus, the director-general of the World Health Organization."
https://en.wikipedia.org/wiki/Jay_Bhattacharya