【新コロ】ハーバード公衆衛生大学院教授「夏まで逃げ切れたら救われる？そんな根拠はない」

Center for Communicable Disease Dynamics
Will COVID-19 go away on its own in warmer weather?
Marc Lipsitch, DPhil
Professor of Epidemiology and Director, Center for Communicable Disease Dynamics, Harvard T.H. Chan School of Public Health

(tl;dr) Probably not.

Several people, including the US president, have suggested that the novel coronavirus SARS-CoV-2 and the disease it causes, COVID-19, will go away on its own in the warmer weather that will come in the Northern Hemisphere in coming months. Some have even suggested that the experience with SARS in 2003 provides evidence for this assertion.

The short answer is that while we may expect modest declines in the contagiousness of SARS-CoV-2 in warmer, wetter weather and perhaps with the closing of schools in temperate regions of the Northern Hemisphere, it is not reasonable to expect these declines alone to slow transmission enough to make a big dent.