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Description:This micrograph reveals both fertilized (A) and unfertilized (B) Ascaris eggs, and a Trichuris egg (C); Mag. 125X.
Using an unstained mount of formalin in preserved feces, note that fertilized eggs are rounded, have a thick shell. While unfertilized eggs are elongated and larger, thinner shelled covered by a more visible mammillated layer than the fertilized eggs.
High Resolution: Click here for hi-resolution image (18.06 MB)
Content Providers(s):CDC
Creation Date:1973
Photo Credit:
Links:CDC – Div. of Parasitic Diseases: Ascariasis
CDC – Div. of Parasitic Diseases: Trichuriasis - Trichuris trichiura
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.