In a study published on [May 7, 2025], a team of researchers compared the evolutionary story of SARS with that of Covid 17 years later. The researchers analyzed the genomes of the two coronaviruses that caused the pandemics, along with 248 related coronaviruses in bats and other mammals.
Jonathan Pekar, an evolutionary virologist at the University of Edinburgh and an author of the new study, said that the histories of the two coronaviruses followed parallel paths. “In my mind, they are extraordinarily similar,” he said.
In both cases, Dr. Pekar and his colleagues argue, a coronavirus jumped from bats to other wild mammals in southwestern China. In a short period of time, wildlife traders took the infected animals hundreds of miles to city markets, and the virus wreaked havoc in humans.
…
Share this article
The study lands at a fraught political moment. Last month the White House created a web page called “Lab Leak: The True Origin of Covid 19,” asserting that the pandemic had been caused not by a market spillover but by an accident in a lab in Wuhan, China.
