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Smallpox viruses, TEM

Smallpox viruses, TEM

C001/6395

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15.8 MB (2.1 MB compressed)

2100 x 2625 pixels

17.8 x 22.4 cm ⏐ 7.0 x 8.8 in (300dpi)

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Credit

EYE OF SCIENCE / SCIENCE PHOTO LIBRARY EYE OF SCIENCE / SCIENCE PHOTO LIBRARY

Caption

Smallpox viruses. Coloured transmission electron micrograph (TEM) of Variola major viruses, the cause of smallpox. The virus consists of genetic material (red), DNA (deoxyribonucleic acid), enclosed by a protein capsid (coat, green). Variola is the most virulent member of the orthopoxvirus group. Variola major is specific to humans, having no other animal hosts. Infection 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. Magnification: x40,700 when printed 10 cm wide.

Release details

Model release not required. Property release not required.

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