Bilharzia fluke. Light micrograph of male & female blood flukes, Schistosoma mansoni. These parasites cause the disease bilharzia. The female (long & thin) lives in a groove in the male's thick body & is continually fertilised. S. mansoni larvae live in water & infect their hosts by penetrating the skin. They travel in the blood until they reach the liver, feeding on blood. After 2 to 3 weeks they migrate to the intestinal blood vessels, mate & produce eggs which pass into the intestine. These are excreted & infect aquatic snails before being released again to infect humans. Bilharzia symptoms include abdominal pain, fever and bloody dysentery. Magnification: x10 at 6x7cm size. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / EYE OF SCIENCE |
Bildgröße: | 3921 px × 4843 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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