See Figure 3: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3551767 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3551767 It is clear that humidity

See Figure 3: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3551767 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3551767 It is clear that humidity has an influence, and temperature may have an influence. I am hopeful that the tropical nations of the world will be spared the worst of this particular disease, but only time will tell.