Diseases, Conditions, Syndromes

More evidence suggests COVID-19 was in US by Christmas 2019

A new analysis of blood samples from 24,000 Americans taken early last year is the latest and largest study to suggest that the new coronavirus popped up in the U.S. in December 2019—weeks before cases were first recognized ...

Health

Organic walnuts tied to serious E. coli illnesses

Organic walnuts from a California grower that were distributed to health food and co-op stores in 19 states have been linked to serious cases of E. coli illness, federal officials reported Tuesday.

Addiction

People who inject drugs are transitioning to smoking them

Researchers from the University of California San Diego have revealed new trends in drug consumption that shed light on how people are adapting to the evolving risks associated with unregulated drug use in the United States. ...

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