Virus

In a new study, the RSV drug nirsevimab was 93% effective at preventing young children from being hospitalized for the respiratory infection.

A new federal order requires that U.S. dairies provide milk samples to the USDA so the agency can test the milk for bird flu prior to pasteurization.

A new laboratory study pinpoints a way H5N1 could evolve to spread from person to person.

Common colds and the flu differ in many ways, including their causes, some of their symptoms and their treatments.

Patients with acromegaly make too much growth hormone, which causes them to grow disproportionately large bones, organs and tissues.

Between 67 and 143 people in the DRC have died of an unknown, flu-like disease, officials have said.

A bacterial infection that rarely occurs in the United States hit a woman in Maryland after she cleaned her home aquarium.

An office worker in Beijing developed a parasitic infection that caused worms to grow under her right eyelid.

Fibrodysplasia ossificans progressiva (FOP) is an extremely rare congenital condition that causes the body to grow a second skeleton, rendering patients immobile.

A new study has revealed that cervical cancer deaths have strongly declined in the U.S. since 2016, likely due to increased rates of HPV vaccination.