Between November 2001 and December 2002, 600 dog fecal samples were collected in main squares and public parks of 13 cities in Chile, from the extreme north to the extreme south of the country. The samples were processed in the laboratory by centrifugal sedimentation and the Harada-Mori methods. T. canis eggs were found in 12 cities. Detection rates ranged from 1.9 to 12.5% with an average of 5...

Hookworm-related cutaneous larva migrans is caused by the intradermal migration of soil-dwelling filariform larvae dog and cat hookworms, most commonly Ancylostoma, usually develop itchy skin lesions, consisting migrating superficial serpiginous traces, or sometimes stationary follicular eruptions. The plantar topography on regions body in contact with sand beaches Antilles, West Africa East As...

Figure 1. Diffuse maculopapular rash that appeared simultaneously with high fever, progressive abdominal distention, and massive gastrointestinal bleeding. Diagnosis: Strongyloides stercoralis hyperinfection syndrome in a patient with human T lymphotropic virus type 1 (HTLV-1) infection. The duodenal sample obtained through a nasogastric tube showed multiple filariform larvae of Strongyloides s...

Strongyloides stercoralis hyperinfection syndrome is a rare but fatal disease, which occurs commonly in immunocompromised patients. Strongyloidiasis among patients with chronic kidney disease is rarely reported.A 55-year-old Chinese male presented to hospital with diarrhea and abdominal pain. He developed acute respiratory failure and progressed to diffuse alveolar hemorrhage owing to dissemina...

A laboratory model exemplifying Shope's concept of virus carriage by helminths was developed using Strongyloides ratti (Sandground, 1925), swine influenza virus, and caesarean-originated, barrier-sustained (COBS) mice and rats. It was shown that S. ratti can act as a carrier of swine influenza virus and infect mice, despite the fact that the nematode has undergone a complete life cycle after ex...

Strongyloides venezuelensis is a parasitic nematode of rodents frequently used to obtain heterologous antigens for the immunological diagnosis of human strongyloidiasis. The aim of this study was to evaluate membrane fractions from S. venezuelensis for human strongyloidiasis immunodiagnosis. Soluble and membrane fractions were obtained in phosphate saline (SS and SM) and Tris-HCl (TS and TM) fr...

Dispersion or dilution of stool by water from heavy rainfall may affect Strongyloides stercoralis free-living development producing infective filariform larvae (FL). This study examined effect of water dilution of stool on survival of S. stercoralis free-living development. One g of stool was prepared in water so that its soluble component was diluted sequentially from 1:2 to 1:480. Three dishe...

The course of Strongyloides stercoralis infection is usually asymptomatic with a low discharge of rhabditoid larva in feces. However, the deleterious effects of alcohol consumption seem to enhance the susceptibility to infection, as shown by a fivefold higher strongyloidiasis frequency in alcoholics than in nonalcoholics. Moreover, the association between S. stercoralis infection and alcoholism...

Cutaneous larva migrans (CLM) is one of the most common skin diseases among travelers returning from the tropics (1,2). The disease is endemic on Caribbean islands, in Africa, South America, Southeast Asia, and the central and southeastern states of the US. In Europe, only sporadic cases have been reported among travelers returning from tropical countries. CLM is clinically characterized by sli...