Biodiversity Nepal
For the Future Generation

Do cold weather encourage COVID-19?

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There is currently no conclusive evidence that either weather (short term variations in meteorological conditions) or climate (long-term averages) have a strong influence on transmission. The SARS-CoV-2 virus which causes COVID-19 disease has been transmitted in all regions of the world, from cold and dry, to hot and humid climates.

SARS-CoV-2 is thought to be mainly transmitted directly from person-to-person through close contact, or through respiratory droplets produced when an infected person coughs or sneezes. People may be infected by touching exposed surfaces, but this is not thought to be a major transmission route. While temperature and humidity may influence how long the virus survives outside of the human body, this effect is likely to be small compared to the degree of contact between people.

Physical distancing and washing hands are therefore essential to breaking the chain of transmission, and are the most effective way to protect yourself, in all locations and all seasons of the year.

Originally published in WHO Newsroom

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