Respiratory viral infection: An infection of the respiratory tract caused by a virus, which can lead to symptoms such as cough, runny nose, and fever
Influenza A: A type of influenza virus that commonly causes respiratory illnesses such as the common cold and flu
Nasopharyngeal swab: A diagnostic test involving the collection of a sample from the upper part of the throat behind the nose to test for respiratory pathogens
Supportive care: Treatments that help relieve symptoms and improve comfort without directly addressing the cause of the disease