COVID-19: The Second Wave is not due to Cooling-down in Autumn

摘要

Case numbers of the COVID-19 disease are of worldwide interest and large effort is made to understand infection mechanismsand to reduce rates. The person-to-person severe acute respiratorysyndrome coronavirus type 2 (SARS-CoV-2) transfer by aerosolsis considered to be dominant and to be enhanced, when weather iscooling down and people spend more time inside closed building.The rapid increase of the rates in many countries since October2020, addressed as “second wave”, is attributed to increasing aerosoltransfer similarly to observations on influenza [1].