| illustration of Variola virus particles, the cause of smallpox. Each particle consists of a core of DNA (deoxyribonucleic acid) and proteins enclosed in an outer envelope containing glycoproteins. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / CHRISTOPH BURGSTEDT |
| Taille de l’image : | 7768 px × 4500 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |