The US CDC has reported research that indicates infections might have occurred in the western United States earlier than previously thought. Photo: EPA-EFE The US CDC has reported research that indicates infections might have occurred in the western United States earlier than previously thought. Photo: EPA-EFE
The US CDC has reported research that indicates infections might have occurred in the western United States earlier than previously thought. Photo: EPA-EFE

Coronavirus pandemic

American study finds signs of coronavirus in US before China outbreak

  • US CDC says blood samples taken in nine states before cases were reported in Wuhan tested positive for antibodies for the pathogen
  • Results indicate that infections might have happened in the western US earlier than previously thought, scientists say

Topic |   Coronavirus pandemic
The US CDC has reported research that indicates infections might have occurred in the western United States earlier than previously thought. Photo: EPA-EFE The US CDC has reported research that indicates infections might have occurred in the western United States earlier than previously thought. Photo: EPA-EFE
The US CDC has reported research that indicates infections might have occurred in the western United States earlier than previously thought. Photo: EPA-EFE
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