COVID-19 transmission may spike seasonally due to temperature and humidity, increasing at different times of the year in different regions, according to a new study in The American Journal of Tropical Medicine and Hygiene.
evaporation and smaller particle sizes, which allows the virus to float in the air longer. People also tend to move inside to avoid the colder weather, which could lead to exposure from other people or recirculated air., which can condense onto the virus particles, create bigger particle sizes, and make them drop to the ground faster. Fewer COVID-19 cases were detected between 62 and 75 degrees, when more people are likely to be outside.
Several recent studies have found similar results between COVID-19 transmission and the climate, according to the. Flu infections also tend to have a seasonal pattern, where temperature, humidity, and location affect the case trends. The researchers stressed the importance of ventilation, filtration, and masks for preventing transmission while indoors. They pointed to air sampling studies that showed good ventilation and filtration can reduce COVID-19 cases in larger, more crowded places such as gyms.
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