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Novel coronavirus infections may have been present in US as early as December: ...

The novel coronavirus may have been introduced into the US as early as December 13 to 16, 2019, suggests a study which assessed archived samples from routine blood donations collected by the American Red Cross.

https://ift.tt/eA8V8J from Hindustan Times - topnews https://ift.tt/2JhVn5h
The novel coronavirus may have been introduced into the US as early as December 13 to 16, 2019, suggests a study which assessed archived samples from routine blood donations collected by the American Red Cross.