Schistosome Eggs #1
by Sinclair Stammers/science Photo Library
Title
Schistosome Eggs #1
Artist
Sinclair Stammers/science Photo Library
Medium
Photograph - Photograph
Description
Schistosome eggs. Light micrograph of eggs from the fluke Schistosoma haematobium, the cause of the disease schistosomiasis (bilharzia). Eggs expelled from infected humans enter lakes and rivers, hatch into larvae and infect aquatic snails, where they develop into cercariae. After leaving the snail the cercariae infect humans who enter the water. The mature adult form lives in veins around the bladder, where the females lay eggs. The large spine on each egg secures it in the wall of the bladder, from where it leaves the body in the urine. Untreated schistosomiasis causes kidney and liver damage. Differential interference contrast. Magnification unknown.
Uploaded
September 21st, 2018
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