False-colour scanning electron micrograph of the surface of the small intestine,showing infection with Cryptosporidium parvum,which causes severe diarrhoea & is a major killer of AIDS victims. The photograph shows a very severe infection by the parasitic protozoan,resulting in the atrophy & fusion of the intestinal villi. The protozoa (green spheres) are incorporated in the intestinal cells,just under the cell membrane. Different sizes are different stages in the life cycle. Cryptosporosis is a common opportunistic infection in AIDS patients: it is the cause of death in about 10% of AIDS patients in the UK & up to 50% elsewhere. Magnification: x900 at 6x4.5cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Moredun Animal Health |
Taille de l’image : | 5223 px × 3938 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |