55 minutes agoA first in 15 years, San Antonio and its fire union both pass new contractGet ready to travel this fall with these Insider DealsFILE - An elderly patient receives an intravenous drip while using a ventilator in the hallway of the emergency ward in Beijing, Thursday, Jan. 5, 2023. have zeroed in on a short list of animals that possibly helped spread it to people, an effort they hope could allow them to trace the outbreak back to its source.
“For example, with the racoon dogs, we can show that the racoon dogs that were … were from a sub-species that circulates more in southern parts of China,” said Worobey, an evolutionary biologist at the University of Arizona. Knowing that might help researchers understand where those animals came from and where they were sold. Scientists might then start sampling bats in the area, which are known to be the natural reservoirs of related coronaviruses like SARS.
Mark Woolhouse, a professor of infectious diseases at the University of Edinburgh, said the new genetic analysis suggested that the pandemic “had its evolutionary roots in the market” and that it was very unlikely COVID-19 was infecting people before it was identified at the Huanan market. Chinese scientists published the genetic sequences they found last year, but did not identify any of the animals possibly infected with the coronavirus. In the new analysis, researchers used a technique that can identify specific organisms from any mixture of genetic material collected in the environment.
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