5.6%  About a week  2.3% (1,023 of 44,672 confirmed cases), 14.8% aged >80 years (208 of 1,408), 8.0% aged 70–79 years (312 of 3,918) 49.0% in critical cases (1,023 of 2,087)  Next step: to help “buy time” for more diagnostic and therapeutic research before COVID‐19 becomes too widespread