Strongyloides spp

The direct wet mount made from unconcentrated fresh feces is most useful for the detection of the motile trophozoites of intestinal protozoa and the motile larvae of Strongyloides spp. It is also useful for the detection of protozoan cysts and helminth eggs. For fixed feces, the direct wet mount may allow the detection of parasites which do not concentrate well. This method is also useful for the examination of specific portions of feces, such as flecks of blood or mucus. 

Larval maturation studies, sometimes referred to as cultures, can be performed on fecal specimens applied to wet filter paper. Nematode larvae such as Strongyloides spp. or hookworm mature to the filariform stages in the culture container and migrate from feces into water, where they are detected microscopically. The procedure can be performed in a petri dish with a square of filter paper or in a large test tube with a strip of filter paper. 

Helminth parasites are the most complex infectious disease agents infecting mammals, and hence the host s antibody responses to them are the most diverse. Unlike other infectious diseases, most helminths do not divide in the body of the final host, and therefore the antigenic load is dependent on the infective dose. Exceptions to this are Echinococcus spp. and Strongyloides spp. Antibodies are produced against antigens present within helminths (somatic... 

The infestations by intestinal roundworms in fowls is responsible for a number of gastrointestinal problems. The common nematodes of the digestic tract of poultry are Heterakis gallinarum, H. indicn, Ascaridia galli, Capillaria spp., Strongyloides avium and Trichostrongylus tenuis. 

Wheezing or urticaria during the early migratory phase of infections with Ascaris spp., hookworm spp., Strongyloides stercoralis, and Schistosoma spp. (14). 

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