how long is rsv contagious for
Transmission. People infected with RSV are usually contagious for 3 to 8 days. However, some infants and people with weakened immune systems can be contagious for as long as 4 weeks.Children are often exposed to and infected with RSV outside the home, such as in school or childcare.They can then transmit the virus to other members of the family. RSV can be spread when an infected person coughs or sneezes into the air, creating virus-containing droplets that can linger briefly in the air.hildren are often exposed to and infected with RSV outside the home, such as in school or childcare. They can then transmit the virus to other members of the family. RSV can be spread when an infected person coughs or sneezes into the air, creating virus-containing droplets that can linger briefly in the air.