What is the flu vaccine?

The flu vaccine (also called the influenza vaccine) is available by shot or by nasal spray. The flu shot contains dead viruses. The nasal-spray vaccine contains live but weakened viruses. You cannot get the flu from the flu shot or the nasal-spray vaccine.



The flu vaccine is given at the beginning of the flu season, usually in October or November. The flu shot is safe for children 6 months of age and older. The nasal spray vaccine is safe for children 2 years of age and older. Because flu viruses change from year to year, it is very important for your child to get the vaccine each year so that he or she will be protected. Children are more likely to have complications from the flu.