Abnormal Helminth Egg Development, Strange Morphology, and the Identification of Intestinal Helminth Infections.

Abstract:

:Occasionally, abnormal forms of parasitic helminth eggs are detected during routine diagnostics. This finding can prove problematic in diagnosis because morphologic analysis based on tightly defined measurements is the primary method used to identify the infecting species and molecular confirmation of species is not always feasible. We describe instances of malformed nematode eggs (primarily from members of the superfamily Ascaridoidea) from human clinical practice and experimental trials on animals. On the basis of our observations and historical literature, we propose that unusual development and morphology of nematode and trematode eggs are associated with early infection. Further observational studies and experimentation are needed to identify additional factors that might cause abnormalities in egg morphology and production. Abnormal egg morphology can be observed early in the course of infection and can confound accurate diagnosis of intestinal helminthiases.

journal_name

Emerg Infect Dis

authors

Sapp SGH,Yabsley MJ,Bradbury RS

doi

10.3201/eid2408.180560

subject

Has Abstract

pub_date

2018-08-01 00:00:00

pages

1407-1411

issue

8

eissn

1080-6040

issn

1080-6059

journal_volume

24

pub_type

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