Control of morbidity due to Schistosoma haematobium on Pemba Island: egg excretion and hematuria as indicators of infection.
Am J Trop Med Hyg
; 43(3): 289-95, 1990 Sep.
Article
en En
| MEDLINE
| ID: mdl-2121056
The variability of Schistosoma haematobium egg excretion using a quantitative syringe filtration technique and the variability of hematuria detected visually and by reagent strips were studied in a population of 520 subjects from the village of Pujini (Pemba Island, Zanzibar, Tanzania) for 6 consecutive days. A high degree of day-to-day variability of egg excretion within subjects was found both in the whole population and in the 5-19 year age group. Subjects with 1 urinary egg count of greater than or equal to 50 eggs/10 ml urine were not similarly classified in 36-61% of the other 5 examinations and 4-16% of their other examinations were negative. Gross hematuria had a specificity of almost 100%, when related to a positive filtration on any day, and was closely related to egg counts of greater than or equal to 50 eggs/10 ml urine. The finding of a strongly positive reaction for hematuria on a given single day was closely associated with the subject having a high egg count (greater than or equal to 50 eggs/10 ml urine) on at least one of the 6 days of the study. At the primary health care level, single highly positive semiquantitative values for hematuria were a more useful diagnostic indicator than a single egg count to select patients with heavy infections for selective population chemotherapy.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Orina
/
Esquistosomiasis Urinaria
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Hematuria
Tipo de estudio:
Etiology_studies
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Incidence_studies
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Observational_studies
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Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adolescent
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Adult
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Child
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Child, preschool
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Female
/
Humans
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Infant
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Male
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Middle aged
País/Región como asunto:
Africa
Idioma:
En
Revista:
Am J Trop Med Hyg
Año:
1990
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Estados Unidos