Description Of The Organism

More than 250 species of Capillaria have been described in mammals, birds, reptiles and amphibians (Cross, 1992), although only four species have been associated with human infection: C. hepatica, C. aerophila, C. plica and C. philippinensis. Of these, only C. philippinensis is a regular human pathogen, and has been associated with large-scale epidemics. The adult males are 1.5-3.9 mm long and the females longer, 2.3-5.3 mm. The male has a long spicule (230300 pm), with the spicular sheath extending up to 440 pm. The eggs exhibit a characteristic peanut shape with small bipolar plugs (Cross, 1992).

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