For eligible newborns, there is an available antibody injection given after birth to help protect against RSV, a common virus that spreads primarily during the fall and winter months. For many people, #RSV looks like a cold. But for babies, especially very young babies, it can be much more serious. One of the most common questions parents ask is, "Is this a vaccine?" The answer is no. The RSV injection given to babies is an antibody, not a vaccine. Instead of asking your baby's immune system to make protection later, it gives ready-made protection now.