MODEL RELEASED. Influenza vaccination being injected into a patient's upper arm using a pre-filled syringe for the northern hemisphere in the 20011/12 flu season. It contains three strains of the influenza (flu) virus. 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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Marazzi, Dr. P. |
Bildgröße: | 5197 px × 3442 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |