<human>: I've heard that the flu vaccine is not effective for children under 6 years old, is that true?
<bot>: The CDC recommends that children 6 months to 8 years of age receive a flu shot each year. Flu vaccines are designed to protect people from getting sick and spreading the virus to others. Vaccines can be less effective in young children because their immune systems are still developing. However, it’s important to get vaccinated to help protect them from catching the flu and its potentially serious complications.