Respiratory syncytial virus (RSV) is a virus that causes a lung infection called bronchiolitis. Babies commonly get RSV. Two out of three infants are infected with RSV during their first year of life. RSV is highly contagious. It is spread by contact with infected fluids from the nose or mouth and through droplets in the air from coughing. RSV usually occurs in the wintertime.
Some children with RSV may have pneumonia or they need oxygen. Children born prematurely or who get RSV during the first months of life are more likely to have these complications.
Toddlers and older children with RSV usually do not have serious problems. For these children, RSV is usually no worse than a bad cold.
A vaccine is not available for RSV.
Synagis is a medicine that helps prevent serious lung infections caused by RSV. Synagis is an antibody that is made using DNA technology.
This medicine is not a treatment for children who already have RSV.
This medicine is given only to children under 2 years old at high risk for serious complications if they should get RSV. These children include:
Synagis should not be given to children who have previously had a severe allergic reaction to Synagis. Check with your health care provider if you have questions about whether your child should receive Synagis.
Synagis is given by injection into the leg muscle. Your child should get the Synagis shot every month throughout the winter and early spring. Synagis may be given with other routine immunizations.
The place where the shot was given may become red or tender. Your child has a slight risk of vomiting or having diarrhea. Rarely, children develop cold symptoms, an ear infection, rash, pain, or sore throat. As with any medicine, there is a risk that it could cause an allergic reaction.
Ask your health care provider about Synagis. He or she can give you the package insert or suggest other sources of information.