Symptoms
Most children have had respiratory syncytial virus (RSV) by the time they are 2 years old, but many parents might not even realize it. That’s because RSV symptoms are very much like the symptoms of a moderate-to-severe cold: runny nose, cough, mild fever, and sore throat. Infants with RSV might also have a decreased appetite and be lethargic or fussy. Sometimes, because congestion is significant, infants can’t feed very well, and they may become dehydrated. Most people will exhibit symptoms about 4 to 6 days after being exposed to the virus.
However, RSV can be particularly dangerous in premature infants and children with congenital heart disease or chronic lung disease because the infection can develop into life-threatening pneumonia. It can also be dangerous for the elderly and people with compromised immune systems.
RSV’s cold-like symptoms do not necessarily require a doctor’s attention. But if you or your child have any of the following symptoms of a lower respiratory infection, call your health professional immediately:
- Trouble breathing
- Rapid breathing
- Episodes of apnea (suspension of breathing)
- Audible wheezing
- High fever
- Cough that produces green or yellow mucus
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