About RSV
Respiratory syncytial virus (RSV) is a common virus that usually causes mild, cold-like illness. It can be serious for infants and older adults, and it circulates mainly in fall and winter.
Symptoms often include runny nose, decreased appetite, coughing, sneezing, and wheezing, and usually appear in stages rather than all at once. In very young infants, the only signs may be irritability, reduced activity, and difficulty breathing.
Who is at higher risk
Some people are more likely to have serious complications and should take extra care:
Infants
Premature infants
Adults 65+
Chronic heart disease
Chronic lung disease
Weakened immune systems
Prevention & vaccines
Immunization is available for those most at risk: an RSV vaccine for older adults and during pregnancy, and a preventive antibody for infants. Everyday steps — handwashing and keeping sick people away from infants — also help.
See full details, including where to get vaccinated, on the Prevention & Vaccines page.
Treatment & when to seek care
Most cases improve with supportive care such as fluids and rest. Watch for signs of trouble breathing or dehydration, especially in infants and older adults, and seek care promptly if they appear.
Seek emergency care for warning signs
Adults: trouble breathing, chest pain or pressure, confusion, persistent dizziness, severe weakness, or symptoms that improve then return with fever.
Children: fast or troubled breathing, bluish lips or face, no tears when crying or other signs of dehydration, or a high fever. When in doubt, call your provider or seek care.
Sources: U.S. CDC; Ohio Department of Health; Cuyahoga County Board of Health. Bracketed text marks placeholders to be completed. This information supports, and does not replace, advice from your health care provider.
