After ~600 deaths due to the #coronavirus #nCoV2019, the probability that an infected person dies (the case fatality risk) is still unknown.

Led by @mlipsitch, we explained why estimating case fatality risks is hard in the early stages of an #outbreak.https://t.co/tX1DVqa8oI pic.twitter.com/iZ39biU5Bi

— Miguel HernĂ¡n (@_MiguelHernan) February 6, 2020