Long-term data from northern Italy—an area hit hard during the early days of the pandemic—suggests that reinfection after recovery from COVID-19 infection is very rare, and […]
Many Americans are confused about the proper application of sunscreen and about its sun protection factor (SPF), the American Academy of Dermatology says.
In a study of 11 medical-mystery patients, an international team of researchers led by scientists at the National Institutes of Health and the Uniformed Services University […]