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This photomicrograph reveals ultrastructural details exhibited by a fertilized egg of the parasite Ascaris lumbricoides, the causal agent of ascariasis. Embryonated, fertilized eggs, become infective after 18-days to several weeks. If ingested, larvae can hatch from the eggs and cause intestinal infection, which infects children more often than adults.
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Content Providers(s):CDC
Creation Date:1979
Photo Credit:
CDC Organization
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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.