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Five U.S. states had coronavirus infections even before first reported cases -study
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[Image: SZ7FSN5TLNJVXMLGXISITSKNT4.jpg]

June 15 (Reuters) - At least seven people in five U.S. states were infected with the novel coronavirus weeks before the states reported their first cases, a large new government study showed, pointing to the presence of the virus in the country as early as December 2019.

Participants who reported antibodies against SARS-CoV-2 were likely exposed to the virus at least several weeks before their sample was taken as the antibodies do not appear until about two weeks of infection, the researchers said.

The samples came from Illinois, Massachusetts, Mississippi, Pennsylvania and Wisconsin, and were part of a study of more than 24,000 samples taken for a National Institutes of Health research program between Jan. 2 and March 18, 2020.

Of the seven samples, three were from Illinois, where the first confirmed coronavirus case was reported on Jan. 24, while the remaining four states had one case each. Samples from participants in Illinois were collected on Jan. 7 and Massachusetts on Jan. 8.


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Five U.S. states had coronavirus infections even before first reported cases -study - by superadmin - 06-17-2021, 02:18 PM

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