100 years ago(1) 1918/19 - Influenza broke. Lasted 9 months. 50 to 100 M people died (world population 1.8 M, hence 6 %). Communication poor at that time (no internet). No vaccination - recovery was based on instant found medications.
(2) Now, internet - so ideally it should take shorter than 9 months. Started late Dec 2019.
(3) Advanced stage medication are only 3 to 5 (all others need development). WHO starting mega trial with 4 (thousands people in several/many countries). More can be added/deleted as needed. Thx.