Dr. Harvey Risch is a Yale epidemiologist with over 7,000 results on Google Scholar. On May 27, he published an opinion in the American Journal of Epidemiology after reviewing the available evidence on the use of hydroxychloroquine (HCQ), zinc, and antibiotics in outpatient settings for COVID-19. He later wrote an editorial for Newsweek advocating for the drug combination to treat patients in the early stages of COVID-19 on an outpatient basis.