FiveThirtyEight Republicans And Democrats See COVID-19 Very Differently. Is That Making People Sick? Samuel Scarpino, a professor at Northeastern University who studies infectious diseases, said that it can be very difficult, even in a sophisticated model, to separate all of the confounding factors that could be at play, like geography. And Katz said that without information about whether people are wearing masks or engaging in social distancing, it’s […]