Abstract

In late of 2020 corona virus pandemic started from Wuhan and spread to the world, one of the most important factors which influence feast and even consequences of COVID.19 is the climate, it affect directly on virus activation and indirectly on the host behavior and even immune response. Persons live in cold, arid and air polluted areas suffer from both spread of the pandemic and serious complications of the COVID.19 infection, due to low level of vitamin D, low activity of thyroid gland, with low levels of thyroid hormones (T3,T4 and TSH), and reduction in angiotensin 2 level. Aged persons living in these zones are the most victims from this pandemic. We conclude that persons live in these zones in industrialized countries are affected more than those under the same meteorological circumstances in non-industrialized countries due to low air pollution. 

Keywords

meteorological factors, climate, weather, COVID.19, SARS COV-2, respiratory tract contagions, respiratory viral infection, mRNA, vitamin D, thyroid hormones