17th February 2021
EP

Climate change may have played a “key role” in the transmission of the novel coronavirus to humans by driving several species of pathogen-carrying bats into closer contact, research showed recently.

 

The virus, which has killed more than two million people and caused unprecedented global disruption, is thought to have originated in bats in Southeast Asia.

 

Researchers from the University of Cambridge used temperature and rainfall data over the last 100 years to model populations of dozens of bat species based on their habitat requirements. 

 

They found that over the last century, 40 species had relocated to southern China, Laos and Myanmar—the area where genetic analysis suggests the virus known as SARS-CoV-2 first appeared.

 

Since each bat species carries an average of 2.7 coronaviruses, the researchers said 100 strains of coronavirus were now concentrated in this “hotspot” area.

 

“Our paper is a long way away from saying the pandemic would not have happened without climate change,” lead author Robert Meyer of Cambridge’s zoology department said.

 

“But I find it difficult to see that this climate-driven increase in bats and bat-borne coronaviruses make something like this less likely to happen.”


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