is rsv deadly in infants
âA minority of them develop bronchiolitis (an inflammation of tiny air passages in the lungs specific to babies and young children) â and a very small percentage have significant problems.â. When RSV attacks the lungs, it is particularly dangerous for newborns and babies born prematurely. Pneumonia and other bronchial complications can set in quickly. RSV and other winter worries. It is an age-old, recurring illness â most adults have been exposed countless times.