Almost every child gets the flu (influenza) from time to time. The flu is caused by a virus and usually occurs from October through May. The rates of infection are highest among children, and flu symptoms can last a week or longer. For most people, the flu can cause fever, cough, sore throat, headache, chills, muscle aches, and fatigue. Some people (especially those who have other illnesses) can get much sicker, and can develop symptoms such as high fever or pneumonia. On average, about 36,000 people die each year from influenza.
There are two types of seasonal influenza vaccine: inactivated (killed) vaccine which is given by an injection (shot), and live attenuated (weakened) vaccine that is sprayed into the nostrils.
For more information follow these links:
Information on Influenza and This Year’s Vaccine
Information on Vaccine Safety and Ingredients:
Questions and Answers on Vaccine Ingredients
Thimerosal, Aluminum and Other Ingredients