Coronavirus Questions Answered: Does Outside Temperature Affect The Virus?

From the evidence so far, the COVID-19 virus can be transmitted in ALL AREAS, including areas with hot and humid weather, according to the World Health Organization. [World Health Organization]
From the evidence so far, the COVID-19 virus can be transmitted in all areas, including areas with hot and humid weather, according to the World Health Organization. [World Health Organization]

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Jim from Vermilion asked: “Does outside temperature affect the virus?”

University Hospitals infectious disease specialist Dr. Keith Armitage said hotter outside temperatures could impact how long a virus — including potentially coronavirus — can live on a surface.

But even though heat can shorten a virus’ lifespan on a surface, warmer temperatures probably won’t reduce the spread.

“If someone is coughing, they have coronavirus, and you’re near them, I think the temperature’s not going to have a big impact,” said Armitage.

The World Health Organization says evidence so far suggests coronavirus can spread in all climates, including hot and humid weather. WHO says COVID-19 is also unaffected by cold and snow.

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