Hepatitis B viruses. Coloured transmission elect- ron micrograph (TEM) of hepatitis B viruses (large green circles),a cause of liver inflammation. The smaller circles and the rod-shaped objects are surplus viral coat (capsid) protein from infected liver cells. These non-infectious antigens (foreign proteins) are used to make vaccines against hepatitis B. The complete viruses are called Dane particles. Hepatitis B is transmitted by infected blood passed mainly through sexual intercourse or the sharing of needles by intraven- ous drug users. Symptoms include headache,fever,weakness and jaundice. Magnification unknown | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / DR LINDA STANNARD, UCT |
Taille de l’image : | 3543 px × 2568 px |
Model Release : | Non requis |
Property Release : | Non requis |
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