If that statement confuses you, just remember that the Centers for Disease Control and Prevention recommends that "household contacts and out of home caregivers of children less than 6 months of age" should get a flu shot each year.
So if your baby lives at home with mom, dad, and a 6-year-old brother, and goes to day care, then during flu season:
- his household contacts (mom, dad, siblings, nanny, etc.) should get a flu vaccine
- his out of home caregivers (day care workers) should get a flu vaccine
- the baby should get two flu shots one month apart if he turns six months old during flu season, which generally lasts from October to March or April in most years
Sources: Prevention and Control of Influenza. Recommendations of the Advisory Committee on Immunization Practices (ACIP), 2007. MMWR. July 13, 2007 / 56(RR06),1-54.

