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1.
Mem. Inst. Invest. Cienc. Salud (Impr.) ; 11(1): 5-14, jun. 2013. ilus
Article in Spanish | LILACS, BDNPAR | ID: lil-707666

ABSTRACT

Entre las fuentes principales que suministran agua para consumo humano se encuentran los acuíferos, que son formaciones geológicas que almacenan agua y actúan como depósito y reserva y se encuentran en toda la superficie terrestre. La explotación se realiza mediante pozos artesianos. La demanda creciente de consumo de agua potable en zonas densamente pobladas han requerido su instalación. El objetivo de este estudio fue determinar el grado de contaminación expresado en la concentración de coliformes fecales, totales y aerobios mesófilos en muestras de agua de pozo del departamento Central, Cordillera y municipio Capital, dentro del límite de afloramiento del acuífero Patiño. Se evaluaron 57 muestras de agua de pozo artesiano de 20 a 130 m de profundidad, tratadas y no tratadas remitidas por propietarios de pozos particulares y aguaterias al INTN durante el año 2008. Se usó la técnica de tubos múltiples para la determinación de coliformes totales y fecales y la de número más probable para aerobios Mesófilos. Fueron clasificadas como contaminadas el 58%(33/57) de las muestras. En las aguas tratadas el 12,5; 40 y 31,2% tenían valores fuera de lo permitido para coliformes fecales, aerobios mesófilos y coliformes totales respectivamente. En aguas no tratadas el 19,5; 61,5 y 48,8% tenían coliformes fecales, aerobios mesófilos y coliformes totales, respectivamente, en niveles fuera de lo permitido de acuerdo a lo establecido en la Norma Paraguaya NP 24 001 80 (5ª edición). Es importante detectar la contaminación microbiológica en las aguas subterráneas, ya que constituyen fuentes de agua potable.


Subject(s)
Groundwater , Water Quality Criteria , Water Wells
2.
Mem. Inst. Oswaldo Cruz ; 96(5): 641-647, July 2001. ilus, tab
Article in English | LILACS, SES-SP | ID: lil-289347

ABSTRACT

A white Shannon-type trap was used for captures of female sand flies in the search for natural infection with flagellates, however, due to its low productivity and as a large number of phlebotomines settled on the researchers' black clothes, we decided to compare the relative attractiveness of black and white Shannon-type traps for sand flies. Several pairs of black and white traps were placed side by side in front of caves in four areas in the Serra da Bodoquena, Bonito county, State of Mato Grosso do Sul, Brazil, for a total of 12 observations and 44 h of capture. The experiment resulted in 889 phlebotomines captured, 801 on the black and 88 on the white trap, representing 13 species. The hourly Williams' means were 8.67 and 1.24, respectively, and the black/white ratio was 7.0:1.0. Lutzomyia almerioi, an anthropophilic species closely associated with caves, was predominant (89 percent). Only two other species, Nyssomyia whitmani and Psathyromyia punctigeniculata, also anthropophilic, were significantly attracted to the black rather than to the white trap (chi2 test; p <= 0.01). The difference between the diversity index of the two traps was not significant at level 0.05. The black trap in these circumstances was much more productive than the white, especially for anthropophilic species


Subject(s)
Animals , Male , Female , Psychodidae/physiology , Behavior, Animal/physiology , Photic Stimulation , Psychodidae/classification , Clothing , Color
3.
Rev. Soc. Bras. Med. Trop ; 34(3): 299-300, maio-jun. 2001.
Article in Portuguese | LILACS | ID: lil-461969

ABSTRACT

During previous research on phlebotomine fauna in a settlement of the Brazilian National Agrarian Reform Institute (INCRA) on the Bodoquena Range, Mato Grosso do Sul State, Brazil, dogs were observed with clinical aspects suggestive of visceral leishmaniasis. A serological survey to leishmaniasis in 97 dogs, by indirect immunofluorescence test, showed 23 (23.7%) serum positive dogs. Samples of the parasites were identified as Leishmania (Leishmania) chagasi.


Durante estudos sobre a fauna flebotomínea em assentamento do Instituto Nacional de Reforma Agrária (INCRA) na Serra da Bodoquena, Estado de Mato Grosso do Sul, Brasil, foram observados cães com manifestações clínicas sugestivas de leishmaniose visceral. Inquérito sorológico para leishmaniose em 97 cães, utilizando reação de imunofluorescência indireta, mostrou 23 (23,7%) soros reagentes. Amostras do parasita foram identificadas como Leishmania (Leishmania) chagasi.


Subject(s)
Animals , Dogs , Dog Diseases/epidemiology , Leishmaniasis, Visceral/veterinary , Brazil , Leishmaniasis, Visceral/epidemiology , Rural Health
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