After a relatively slow start to the respiratory virus season, Covid-19 levels in the United States began ramping up just ahead of the winter holidays. In previous years, Covid-19 levels…

First come the horseshoe crabs. Hoisting their round, tank-like shells, they trundle out of the Delaware Bay under the first full moon in May to mate and lay their eggs.…

A genetic analysis of samples from the patient in Louisiana recently hospitalized with the country’s first severe case of H5N1 bird flu show the virus likely mutated in the patient…

The U.S. Food and Drug Administration is proposing that cosmetic products containing talc should be tested using standardized methods to detect asbestos, a potential contaminant, according to documents posted on…

Savannah Mendoza used to spend most of her paychecks on food delivery apps and at fast food drive-thrus, trying to satisfy a compulsive craving. After she started taking a popular…

Whooping cough has been surging in the United States for months and the latest data from the US Centers for Disease Control and Prevention suggests there are no signs of…