Parasitological and serological studies on Amoebiasis and other intestinal parasitic infections in Recife and its suburban area, northeast Brazil

Revista do Instituto de Medicina Tropical de São Paulo

Mitsu Okazaki²  Masaichi Okazaki²  Paulo Miranda¹  Joan Neto¹  Vilneide Diegues¹  Joan Alves¹  Machado Cauas¹  Masanobu Tanabe¹  Seiki Kobayashi¹  Nobuaki Kaneko¹  Kouichi Nagakura¹  Masashi Kobayashi¹  Severa Motta¹  Seiki Tateno¹  Tsutomu Takeuchi¹ 

[1] ,Secretaria de Saúde Pernambuco ,Brazil

关键词: Parasitic helminths;    Parasitic protozoa;    Amoebiasis;    Northeast Brazil;    Stool examination;    Sero-epidemiology;   

DOI  :  10.1590/S0036-46651988000400012

来源: SciELO

【 摘 要 】

Parasitological examinations were carried out during April to August, 1987, with 187 out-patients of the IMIP hospital, located in the center of Recife City, and 464 inhabitants of several villages around Cabo City, 50 Km southeast of Recife, Pernambuco, Brazil. Approximately 71% of the IMIP patients and 92% of the Cabo inhabitants were infected with at least one species of intestinal parasite. There was minimum difference in the prevalence rate of Trichuris trichiura between two areas, whereas the prevalence rates of Ascaris lumbricoides, hookworms, Strongyloides stercoralis, Schistosoma mansoni and Entamoeba histolytica were higher in the inhabitants of the Cabo City area. Only Giardia lamblia was more prevalent in the out-patients of IMIP hospital. Test tube cultivation revealed that the prevalence rate of Necator americanus in both areas was much higher than that of Ancylostoma duodenale , and also that the prevalence rate of S. stercoralis of the IMIP patients and Cabo inhabitants were 4.5% and 9.6%, respectively. Six hundred and fifteen sera were serologically examined for amoebiasis by the gel diffusion precipitation test (GDP) and enzyme linked immunosorbent assay (ELISA) using the antigen prepared from axenically cultured trophozoite of E. histolytica (strain HM-ITMSS). No positive reaction was observed in all of the sera as examined by GDP, while 32 out of 615 sera were positive on ELISA.

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