Virus attacks young infants
Many times the symptoms are similar to a common cold, but Respiratory syncytial virus (RSV) is much more serious and attacks young infants. If contracted, it can bring serious complications to young infants, particularly to preemies whose underdeveloped lungs and immature immune systems make it harder to fight off the infection.
RSV is the leading cause of infant hospitalization and is responsible for about 10 times more infant deaths each year than the flu according to the CDC.
There's no cure. So the best prevention is frequent washing of hands, toys, play areas and bedding. Also, keep children away from those who are sick and never let anyone smoke around babies. Those who have cold-like symptoms should stay away from high-risk babies, as well.