The Synagis shot is injected into the leg muscle, once a month, during
RSV season, which last from November thru April. The vaccine has been shown to be effective in preventing and/or reducing the severity of RSV infections and the number of hospitalizations each year.
Infants who are a product of multiple births, have lung disease, low birth weight, heart disease, and those born prematurely are at a higher risk to contract a serious form of Resipritory Syncytial Virus.