Vaccines. Boxes containing vaccines against rubella (German measles,centre left),mumps (centre) and measles (centre right) viruses. Vaccination against these diseases is recommended during childhood in order to provide long-term protection. The injection of a killed or weakened micro-organism,such as a virus,causes the response of the immune system to be stronger when infections occur in the future | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Reeve, Antonia |
Taille de l’image : | 4468 px × 3162 px |
Model Release : | Non requis |
Property Release : | Non requis |
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