RSV Symptoms (Respiratory Syncytial Virus)

Respiratory syncytial virus (RSV) is a common virus that causes respiratory infections in people of all ages. In healthy adults and older children, RSV usually resembles a cold with runny nose, cough, sneezing, fever, and decreased appetite. In infants, older adults, and those with weakened immune systems, RSV can lead to severe lower respiratory tract illness, such as bronchiolitis or pneumonia.

• Cause: RSV spreads through respiratory droplets when an infected person coughs or sneezes, through direct contact, or by touching contaminated surfaces.
• Risk factors:

Infants under 6 months, especially premature babies

Adults over 65

People with chronic lung disease, heart disease, or weakened immune systems

Children in daycare or crowded environments

Exposure to tobacco smoke

Seek medical attention if RSV symptoms include:

• Difficulty breathing or rapid breathing
• Wheezing or bluish lips or skin
• High fever
• Signs of dehydration (no urine for several hours, dry mouth, no tears when crying)

Infants who are unusually irritable, lethargic, or feeding poorly should also be evaluated promptly.