DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Influenza vaccines in pre-filled syringes. This is a split virion, inactivated, vaccine, being used for the northern hemisphere in the 20011/12 flu season. It contains three strains of the influenza (flu) virus. When injected, the vaccine stimulates the body's immune system to produce antibodies, but without causing an infection. The immune system can then respond quickly against future infections by the flu virus. The flu vaccine is given to people at risk, such as the elderly and very young. It is provided annually because of the need to protect against new strains. This vaccine, Enzira, is marketed in the UK by Pfizer Vaccines.
Model release not required. Property release not required.