Cross-sectional studies on<i>Schistosoma monsoni</i>infection in northeast Brazil

Barbosa, Frederico Simões

doi:10.1080/00034983.1975.11687003

Cited by 10 publications

(1 citation statement)

References 6 publications

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“…Its wide geographic distribution, the high number of infected people and the possibility of its de velopment into a severe form emphasize its importance as a public health problem. Many Authors throughout the world 2,4,5,6,18,20,22,26,27,30 have pointed out the need of epidemiolo gic studies regarding schistosomiasis mansoni in endemic areas, in order to better evaluate its, natural history and the real impact the dis ease might have on populations.…”

Section: Introductionmentioning

confidence: 99%

A clinical epidemiologic study in a schistosomiasis mansoni endemic area (Tuparecê, Minas Gerais)

Guimarães¹,

Barros²,

Katz

1985

Rev. Inst. Med. trop. S. Paulo

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SUMMARYA population-based clinical epidemiologic study on schistosomiasis mansoni was carried out in Tuparece, Minas Gerais. The patients were interviewed for symptoms, water contact, past history and examined for spleen and liver enlarge ment. From the 830 people registered in the census, 777 (93.6%) had their stools examined (Kato-Katz method) and 696 (83.9%) were clinically evaluated. The overall index of Schistosoma mansoni infection was 43.2%. Significant and increased infection risks could be detected in the young age group (2-14 years old) regarding occupation, time of residence in the area and frequency of water contact. Bloody stools were significantly more prevalent among positives, while diarrhea was significantly more prevalent among those negative. The area was shown to have a low morbidity as well as a low intensity of infection measu red by the number of S. mansoni eggs per gram of feces. A close correlation was found between water contact pattern and the age prevalence curve. It has empha sized the importance of habits in determining prevalence rates, besides suggesting that schistosomiasis mansoni in the area is manifested as a light and somewhat harmless infection with little consequence for the population as a whole.

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Section: Introductionmentioning

confidence: 99%

A clinical epidemiologic study in a schistosomiasis mansoni endemic area (Tuparecê, Minas Gerais)

Guimarães¹,

Barros²,

Katz

1985

Rev. Inst. Med. trop. S. Paulo

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Occurrence of a community with high morbidity associated with Schistosoma mansoni infection regardless of low infection intensity in north-east Brazil

Tanabe

Gonçalves²,

Gonçalves³

et al. 1997

Transactions of the Royal Society of Tropical Medicine and Hygi

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To establish the relationship between schistosome-associated morbidity and infection intensity in northeast Brazil, a parasitological and ultrasonographical study was carried out on 484 inhabitants of 4 villages (I, II, III and IV) in São Lourenço da Mata, Pernambuco, Brazil, where schistosomiasis is endemic. Quantitative stool examination using Knight's method demonstrated a high prevalence and moderate intensity of Schistosoma mansoni infection, and also that the subjects in village IV had a significantly lower prevalence and intensity of infection than those of the other villages. By ultrasonography, periportal fibrosis (PPF) and splenomegaly were found in 52% of the 299 infected subjects and 66% of the 146 infected subjects aged over 16 years old, respectively; 32% and 31% of the 299 infected subjects had abnormally high values of total bile acid (TBA) and alkaline phosphatase (ALP) activity, respectively. Liver and spleen size, PPF, and serum level of TBA and ALP were not correlated with infection intensity. There was no significant difference in the morbidity assessed by liver and spleen size, PPF, and serum analysis between the subjects in village IV and the other villages. These findings suggest the occurrence of a community with high morbidity associated with schistosomiasis regardless of low infection intensity.

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A long-term schistosomiasis control project with molluscicide in a rural area of Brazil

Barbosa¹,

Costa²

1981

Annals of Tropical Medicine & Parasitology

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Cross-sectional studies onSchistosoma monsoniinfection in northeast Brazil

Cited by 10 publications

References 6 publications

A clinical epidemiologic study in a schistosomiasis mansoni endemic area (Tuparecê, Minas Gerais)

A clinical epidemiologic study in a schistosomiasis mansoni endemic area (Tuparecê, Minas Gerais)

Occurrence of a community with high morbidity associated with Schistosoma mansoni infection regardless of low infection intensity in north-east Brazil

A long-term schistosomiasis control project with molluscicide in a rural area of Brazil

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