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| Cruz Romero, Anabel. |
| Los objetivos de esta investigación fueron determinar la distribución espacial e identificar los factores de riesgo asociados a la leptospirosis bovina en el estado de Veracruz, México. Se obtuvieron muestras de sangre de 3,454 bovinos de 54 municipios de las regiones Norte, Centro y Sur del estado, de febrero 2008 a diciembre de 2011. Los sueros se analizaron por medio de la técnica de aglutinación microscópica utilizando 12 serovariedades de Leptospira interrogans, se estimaron las seroprevalencias y los factores de riesgo. La seroprevalencia general fue del 3.9%; sin embargo, entre municipios varió de 0 y 44%. La mayoría de las UP con casos positivos se encontraron en la zona centro de Veracruz, y en los municipios de Cuitláhuac, Papantla, Tlacotalpan... |
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Palavras-chave: Estudio transversal; Bovinos; Serología; Epidemiología; Cross-sectional study; Bovines; Serology; Epidemiology; Agroecosistemas Tropicales; Doctorado. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2336 |
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| SPRENGER,LEW K.; YOSHITANI,URSULA Y.; BUZATTI,ANDREIA; MOLENTO,MARCELO B.. |
| ABSTRACT The objective of this study was to determine the prevalence and diversity of gastrointestinal parasites in fecal samples from wild birds and mammals from the State of Paraná. In total, 220 stool samples were sent to Parasitic Diseases Laboratory of the Federal University of Paraná during 13 months (Jan/2013-Jan/2014). A total of 52.7% (116/220) of the animals were positive for cysts, oocysts, eggs and/or trophozoites. In birds, the positivity rate was 37.9% (25/66) and mammals was 59.1% (91/154). Strongyloidea superfamily eggs were observed in 37.3% (82/220) of the samples, Eimeria spp. in 10% (22/220), and Trichuris spp. in 4.5% (10/220). The most frequent mammal species were llamas (Lama glama), and dromedaries (Camelus bactrianus) with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cross-sectional study; Environmental management; Wild animals; Zoonosis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100231 |
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| Toledo Jr.,Antonio C.; Greco,Dirceu B.; Felga,Marcelo; Barreira,Dráurio; Gadelha,Maria de Fátima S.; Speranza,Francisco A.B.. |
| Hepatitis B and C constitute important public health problems worldwide. In Brazil, studies on prevalence of viral hepatitis have local and regional characteristics; consequently it is difficult to define the national epidemiological situation. Our objective was to evaluate the seroprevalence of hepatitis B and C in conscripts of the Brazilian Army. A transversal study among males aged 17 to 22 years was conducted nationwide. After informed consent, each volunteer filled in a social-behavioral questionnaire and had blood drawn to test for HBsAg and anti-HCV. A total of 7,372 volunteers were evaluated in the second half of 2002. The prevalence of HBsAg was 2.6% (95% confidence interval: 2.2, 3.0) and that of anti-HCV was 1.5% (95% confidence interval: 1.2,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Viral hepatitis; Seroepidemiological studies; Cross-sectional study; Prevalence; Brazil. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000500004 |
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