| Popis: |
The intestinal nematodes Enterobius vermicularis, Trichuris trichiura, Capillaria philippinensis, and Trichostrongylus spp. are endemic worldwide, although the true prevalence is not known, as many infections are undiagnosed and some are difficult to diagnose. T. trichiura is estimated to infect as many as 500 million people worldwide. Each of these nematodes has distinctive life cycles, varying degrees of pathology, and different epidemiologic features. However, they all infect the gut as larvae and adults, producing eggs that are excreted in the stool. Most of the intestinal nematodes are susceptible to anti-helminthic drugs, with trichuriasis requiring additional rounds of treatment for maximum efficacy. Prevention is through handwashing, sanitary disposal of human excreta, prevention of fecal contamination of topsoil, and improved food hygiene. |
