Smallpox virus particle. Artwork of the variola virus,the virus that causes smallpox. This brick-shaped virus consists of an outer membrane studded with surface proteins. Inside is a protein capsule containing the genetic material (DNA). Variola is the most virulent member of the orthopoxvirus group. It is specific to humans,having no other animal hosts. Infection with variola causes a high temperature and skin spots that develop into scarring pustules. It is transmitted by respiratory droplets or by the pus. Smallpox was eradicated in the 1970's by a global vaccination programme. However,isolated cultures of the virus are still kept in laboratories for research purposes | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Fester, Thomas |
Bildgröße: | 5787 px × 4000 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |