As an epidemiologist, I believe that America has been profoundly ill-served by the contribution of its public health authorities to the debate on the efficacy of treating vulnerable COVID-19 patients with hydroxychloroquine (HCQ). It is a debate with a direct link to whether America’s schools should reopen next month. Even those who reject the World Health Organization’s misleading comparison of COVID-19 with the horrendous 1918 Spanish flu pandemic and its presumption that humans lack any immunity against SARS-CoV-2 would welcome improvements in our ability to treat patients with COVID-19, in order to reduce the risk in reopening schools. Distinguished Yale...