You are in Medical Library . Alternative Names RSV Definition RSV is a member of the genus Pneumovirus. RSV causes upper and lower respiratory illness in infants and young children. In healthy adults and older children, it is usually a mild respiratory illness. Although studies have shown that people produce antibody against the virus, infections continue to occur in people of all ages.
Symptoms are variable and differ with age.
Infants less than one year old are most severely affected and often have the most trouble breathing . Treatment Mild infections resolve without treatment. A severe infection in infants and children may require hospitalization to provide supplemental oxygen, humidified air, and hydration by intravenous fluids. Aerosol ribavirin, an antiviral medication, may be administered to infants. Ribavirin is most effective if given within the first 48 hours following onset of symptoms.