Ancient viral fossils buried in our DNA are offering fresh clues about how today’s respiratory pathogens infect and spread. By tracing the shared architecture between long-extinct retroviruses and ...

A coronavirus infection can mow down the forests of hairlike cilia that coat our airways, destroying a crucial barrier to keeping the virus from lodging deep in the lungs. Normally, those cilia move ...

Pneumonia is an infection of the lung alveoli caused by bacteria, viruses or fungi. It is one of the leading causes of morbidity and mortality worldwide, representing a clinical and economic burden ...

The safety of the monoclonal antibody nirsevimab and the effect of nirsevimab on hospitalizations for respiratory syncytial virus (RSV)–associated lower respiratory tract infection when administered ...

Acute upper respiratory infections (URIs) are among the most common viral illnesses and usually affect the nose and throat. They last up to 3 weeks and don’t typically require medical treatment. URIs ...

COVID-19 is normally associated with the lungs and respiratory system. Most people think of symptoms such as coughing and shortness of breath when they think of COVID-19. However, COVID-19 can impact ...

An upper respiratory infection (URI) affects the nasal passages and throat. It can cause symptoms, such as a cough and excess mucus. A URI occurs when a virus or bacteria enter the body, usually ...