RSV Timeline: How Long Are You Contagious?

Respiratory syncytial virus (RSV) is a common virus that affects the respiratory system, including your lungs and airways. Most people get it before age 2, but adults can also get it.

RSV symptoms are similar in older adults and children. It starts with cold-like symptoms like cough, fever, and a runny nose. These symptoms can quickly worsen and turn into trouble breathing or wheezing. This is especially important to watch in young infants who can’t communicate their symptoms.

The incubation period for RSV is between 4 to 6 days from exposure. You may not have symptoms during this time.

RSV is usually contagious for 3 to 8 days from when you’re exposed. But babies and people with weakened immune systems can spread it for up to a month.

Most people recover from RSV within a week or two. But for infants and older adults who are more at risk, recovery can take longer.

RSV can be managed at home with rest, fluids, and over-the-counter medications like ibuprofen. If symptoms worsen or you have trouble breathing, you may need to go to a hospital for oxygen or fluids.

RSV is most common in the fall and winter. It usually peaks between December and February, but patterns vary by region.

RSV spreads through droplets when someone coughs or sneezes. You can also get it by touching contaminated surfaces and then your face. It is highly contagious, especially in its early stages.

To prevent RSV, wash your hands frequently, clean surfaces, and avoid close contact with sick people. Wearing a mask can also help reduce the spread of RSV and other respiratory infections. The RSV vaccine is recommended if you are pregnant, over the age of 75, or you are over 60 with a serious health condition.