Respiratory syncytial virus (RSV) is a common, contagious virus that affects your respiratory system. It spreads easily and leads to cold-like symptoms such as a runny nose and cough.
Most people with RSV have mild symptoms that go away on their own in a week or two. But RSV can lead to serious complications, especially for babies, older adults, and people with certain conditions.
If you have RSV and you can’t breathe well or you’re dehydrated, you may need to go to the hospital. You may need IV fluids, oxygen, or ventilation (which helps with your air flow).
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