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ID#:622
Description:This micrograph depicts an egg from a Schistosoma haematobium trematode parasite; magnified 500x. Note the egg's posteriorly-protruding spine, unlike the spinal remnant, which protrudes from the lateral wall of the Schistosoma japonicum egg.
These eggs are eliminated in an infected human's feces or urine, and under optimal conditions in a watery environment, the eggs hatch and release "miracidia", which then penetrate a specific snail intermediate snail host. Once inside the host, the S. haematobium parasite passes through two developmental generations of sporocysts, and are released by the snail into its environment as "cercariae".
High Resolution: Click here for hi-resolution image (6.5 MB)
Content Providers(s):CDC
Creation Date:1986
Photo Credit:
Links:CDC - National Center for Infectious Diseases; Division of Parasitic Diseases: Schistosomiasis
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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