Influenza vaccines. Packet of influenza (flu) vaccines being taken out of a refrigerator. Influenza vaccines contain dead influenza viruses. When injected,these stimulate the body's immune system to produce antibodies that protect against future infection by live viruses | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 5125 px × 3410 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
|