
Nate Silver @NateSilver538
@JamesSurowiecki @joshtpm @Austan_Goolsbee In the literature, there are several proposed reasons why IFRs might vary. Hospital capacity is an issue. There could be different strains. It's possible that viral load matters, so that harder-hit places where people are exposed to higher doses could produce more fatalities. — PolitiTweet.org