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Graeff-Teixeira, Carlos; Goulart, Aline Hamilton; Brum, Charles de Ornellas; Laitano, Antonio Carlo; Sievers-Tostes, Charlotte; Zanini, Graziela Maria; Bered, Patrícia Leão; Morassutti, Alessandra; Geiger, Stefan; Abrahms-Sandi, Elizabeth; Oliveira, Fernanda Teixeira dos Santos; Maurer, Rafael Lucyk; Aguiar, Luís Felipe; Garrido, Cinara Tentardini; da Silva, Ana Cristina Aramburu; Rodriguez, Rubens; Schulz-Key, Hartwig; Agostini, Aventino Alfredo
Revista da Sociedade Brasileira de Medicina Tropical, 07/2005, Letnik: 38, Številka: 4Journal Article
Abdominal angiostrongyliasis is a zoonotic infection caused by Angiostrongylus costaricensis, a nematode with an intra-vascular location in the mesentery. Our objective was to address several aspects of the natural history of this parasitosis, in a longitudinal clinical and seroepidemiological study. A total of 179 individuals living in a rural area with active transmission in southern Brazil were followed for five years (1995-1999) resulting in yearly prevalence of 28.2%, 4.2%, 10%, 20.2% and 2.8% and incidences of 0%, 5.9%, 8% and 1.5%, respectively. Both men and woman were affected with higher frequencies at age 30-49 years. In 32 individuals serum samples were collected at all time points and IgG antibody reactivity detected by ELISA was variable and usually persisting not longer than one year. Some individual antibody patterns were suggestive of re-infection. There was no association with occurrence of abdominal pain or of other enteroparasites and there was no individual with a confirmed (histopathologic) diagnosis. Mollusks were found with infective third-stage larvae in some houses with an overall prevalence of 16% and a low parasitic burden. In conclusion, abdominal angiostrongyliasis in southern Brazil may be a frequent infection with low morbidity and a gradually decreasing serological reactivity.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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