ID#: 4826
This photomicrograph reveals ultrastructural details exhibited by three fertilized, Ascaris lumbricoides eggs. The ovum on the right represents a decorticated example, exhibiting an absent outer layer. After fertile eggs embryonate, they become infective after 18-days to several weeks. If ingested, larvae can hatch, causing the intestinal infection known as ascariasis, which infects children more often than adults.
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Content Provider(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.