First US Case of Apparent SARS-CoV-2 Community Transmission

A patient in California acquired COVID-19 despite not traveling to an affected area or having contact with anyone who did.

Written byShawna Williams
| 2 min read

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ABOVE: The University of California, Davis Medical Center
WIKIMEDIA, COOLCAESAR

The US Centers for Disease Control announced yesterday (February 26) that an infection with the novel coronavirus had been confirmed “in a person who reportedly did not have relevant travel history or exposure to another known patient with COVID-19,” making it the first suspected US case of what is known as community transmission. Fifty-nine other cases of COVID-19 have been confirmed in the US, but all of them were linked to recent travel to affected areas abroad, including a cruise ship that experienced an outbreak, the Associated Press notes.

“The thing that would immediately make all of us uneasy is if this person has no direct contact with someone who comes from an affected country,” William Schaffner, an infectious disease expert at Vanderbilt University, tells The New York Times. “That would suggest there are other undetected cases out there, and we ...

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Meet the Author

  • Shawna was an editor at The Scientist from 2017 through 2022. She holds a bachelor’s degree in biochemistry from Colorado College and a graduate certificate in science communication from the University of California, Santa Cruz. Previously, she worked as a freelance editor and writer, and in the communications offices of several academic research institutions. As news director, Shawna assigned and edited news, opinion, and in-depth feature articles for the website on all aspects of the life sciences. She is based in central Washington State, and is a member of the Northwest Science Writers Association and the National Association of Science Writers.

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