Researchers are seeking adults between the ages of 18 and 49 years who are otherwise in good health. You may be excluded if you are pregnant, allergic to eggs or currently suffering from a chronic medical condition that may weaken your immune system. This is not an experimental vaccine. This is an approved influenza vaccine currently administered each fall in the form of a shot. Volunteers will be randomized into two groups.
Influenza is a respiratory infection caused by a virus.
It usually causes fever, muscle aches, tiredness and respiratory symptoms like sore throat, cough and stuffy nose. Occasionally, the flu can cause pneumonia. Each year, there are 20,000 influenza-related deaths in the United States. The Center for Vaccine Development was founded in 1989.