The patient, who was older than 65 and had underlying medical conditions, was hospitalized Dec. 18 in critical condition with severe respiratory illness.

Mild sicknesses tend to spike during the winter months, but this season, public health experts are warning of a possible "quad-demic." ...

A century ago, iodine deficiency affected kids across large swaths of the country. It essentially disappeared after some food makers started adding it to table salt, bread and some other foods, in one ...