Harvey Risch says treatment effective in helping people in early stages of disease, especially those with higher risks. Amid the ongoing coronavirus pandemic Yale School of Public Health epidemiology professor Harvey Risch is asserting that the drug hydroxychloroquine, in conjunction with zinc and appropriate antibiotics, can help high-risk patients recover from COVID-19. Risch draws a distinction between two stages of the illness, noting that while the treatment will likely work quickly during the first stage, it is not effective in helping people who have advanced to the more serious second stage. "At the first stage, it is a flu-like illness....