#CORONA WEATHER YEAR ROUND DRIVERS#

Evidence from studies on different coronaviruses suggest that low temperature and low radiation/sunlight favour survival.

#CORONA WEATHER YEAR ROUND DRIVERS#

The dynamics of seasonal coronaviruses reflect immunological, weather, social and travel drivers of infection.

Seasonal coronavirus infections in children under 3 years old were more frequent at the start of an annual epidemic than at the end, suggesting that the size of the susceptible child population may be important in the annual cycle. Coronavirus infections were significantly more common where daily average global radiation was under 300 kJ/m 2/h (OR 4.3 CI 3.9–4.6 p < 0.001) where average relative humidity was over 84% (OR 1.9 CI 3.9–4.6 p < 0.001) where average air temperature was below 10 ☌ (OR 6.7 CI 6.1–7.3 p < 0.001) or where sunshine was below 4 h (OR 2.4 CI 2.2–2.6 p < 0.001) when compared to the distribution of weather values for the same time period. Ninety percent of infections occurred where the daily mean ambient temperatures were below 10 ☌ where daily average global radiation exceeded 500 kJ/m 2/h where sunshine was less than 5 h per day or where relative humidity was above 80%. The seasonal distribution of 985,524 viral infections in England and Wales (1989–2019) showed coronavirus infections had a similar seasonal distribution to influenza A and bocavirus, with a winter peak between weeks 2 to 8.

Seasonal coronaviruses from 2012 to 2019 were compared to daily average weather parameters for the period before the patient’s specimen date with a range of lag periods. Respiratory virus disease data for England and Wales between 19 was extracted from the Second-Generation Surveillance System (SGSS) database used for routine surveillance. We examine the seasonality of respiratory infections in England and Wales and the associations between weather parameters and seasonal coronavirus cases.

The survival of coronaviruses are influenced by weather conditions and seasonal coronaviruses are more common in winter months.

Corona weather year round