How long does rsv generally last?

Depends-age/status: Rsv related illness develops within 2-8 days of exposure & may result in minor infection localized to the nose & upper airway or cause significant problems in some move if it moves to the lower airway.The process evolves over a week, with most hospitalized infants saying less than 5 days.Those with lower airway problems ( bronchiolitis) often cough & wheeze for weeks after the germ is gone.