Leptospirosis Prevalence in Patients with Initial Diagnosis of Dengue

Objective. To determine the prevalence of leptospirosis in patients from Veracruz with initial diagnosis of dengue and its association with risk factors. Materials and Methods. Transversal study in patients who sought medical attention under the suspicion of dengue. Backgrounds were researched and b...

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Main Authors: A. Dircio Montes Sergio, E. González Figueroa, Verdalet Guzmán María Saadia, Soler Huerta Elizabeth, Rivas Sánchez Beatriz, M. Altuzar Aguilar Víctor, J. Navarrete Espinosa
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Tropical Medicine
Online Access:http://dx.doi.org/10.1155/2012/519701
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author A. Dircio Montes Sergio
E. González Figueroa
Verdalet Guzmán María Saadia
Soler Huerta Elizabeth
Rivas Sánchez Beatriz
M. Altuzar Aguilar Víctor
J. Navarrete Espinosa
author_facet A. Dircio Montes Sergio
E. González Figueroa
Verdalet Guzmán María Saadia
Soler Huerta Elizabeth
Rivas Sánchez Beatriz
M. Altuzar Aguilar Víctor
J. Navarrete Espinosa
author_sort A. Dircio Montes Sergio
collection DOAJ
description Objective. To determine the prevalence of leptospirosis in patients from Veracruz with initial diagnosis of dengue and its association with risk factors. Materials and Methods. Transversal study in patients who sought medical attention under the suspicion of dengue. Backgrounds were researched and blood samples were drawn to determine dengue (NS1, RT-PCR) and leptospirosis (IFI). Simple frequencies, central tendency and dispersion measures, and prevalence and trust intervals at 95% (IC95%) were obtained. Prevalence reasons (RP) and IC95% were obtained and a multivariate logistic model was applied, using SPSS V15. Results. 171 patients were included, 56% women (32±14 years) and 44% men (32±17 years). 48% of the cases (IC95% 40.5–55.4) was positive to dengue, with a cut point of 1 : 80, seroprevalence for leptospirosis was of 6% (IC95% 2.7–10); 12% (IC95% 7–16.5) was positive to both pathologies and 34% was negative to both tests. Although the largest number of isolations corresponded to serotype 2, the four dengue virus serotypes were identified. In the bivariate analysis, overcrowding RP = 1.33, (IC = 0.46–3.5), bathing in rivers (RP = 1.31, IC = 0.13–7.4), and walking barefoot (RP = 1.39, IC = 0.58–3.3) were the variables associated with leptospirosis, although the relation was not statistically significant. Conclusions. Leptospirosis prevalence in subjects under suspicion of dengue fever is high, as well as the coincidence of both infections. The results show the coexistence of overlapped outbreaks of several diseases sharing the side of transmission. It is necessary the intentional search of other pathologies, such as influenza, rickettsiosis, and brucella, among others.
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spelling doaj-art-b2405e7a64874eeab9c0f81de7a2cf5a2025-02-03T01:30:04ZengWileyJournal of Tropical Medicine1687-96861687-96942012-01-01201210.1155/2012/519701519701Leptospirosis Prevalence in Patients with Initial Diagnosis of DengueA. Dircio Montes Sergio0E. González Figueroa1Verdalet Guzmán María Saadia2Soler Huerta Elizabeth3Rivas Sánchez Beatriz4M. Altuzar Aguilar Víctor5J. Navarrete Espinosa6Coordinación de Vigilancia Epidemiológica y Apoyo en Contingencias, Unidad de Salud Pública, Instituto Mexicano del Seguro Social (IMSS), 03100, Mexico City, DF, MexicoCoordinación de Vigilancia Epidemiológica y Apoyo en Contingencias, Unidad de Salud Pública, Instituto Mexicano del Seguro Social (IMSS), 03100, Mexico City, DF, MexicoCoordinación de Salud Pública, Delegación Veracruz Norte, IMSS, 91810, Mexico City, DF, MexicoCoordinación de Investigación en Salud, Delegación Veracruz Norte, IMSS, 91000, Mexico City, DF, MexicoClínica de Medicina Tropical, Unidad de Medicina Experimental, Facultad de Medicina, UNAM, 06700, Mexico City, DF, MexicoCentro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, 94294, Xalapa, VER, MexicoCoordinación de Vigilancia Epidemiológica y Apoyo en Contingencias, Unidad de Salud Pública, Instituto Mexicano del Seguro Social (IMSS), 03100, Mexico City, DF, MexicoObjective. To determine the prevalence of leptospirosis in patients from Veracruz with initial diagnosis of dengue and its association with risk factors. Materials and Methods. Transversal study in patients who sought medical attention under the suspicion of dengue. Backgrounds were researched and blood samples were drawn to determine dengue (NS1, RT-PCR) and leptospirosis (IFI). Simple frequencies, central tendency and dispersion measures, and prevalence and trust intervals at 95% (IC95%) were obtained. Prevalence reasons (RP) and IC95% were obtained and a multivariate logistic model was applied, using SPSS V15. Results. 171 patients were included, 56% women (32±14 years) and 44% men (32±17 years). 48% of the cases (IC95% 40.5–55.4) was positive to dengue, with a cut point of 1 : 80, seroprevalence for leptospirosis was of 6% (IC95% 2.7–10); 12% (IC95% 7–16.5) was positive to both pathologies and 34% was negative to both tests. Although the largest number of isolations corresponded to serotype 2, the four dengue virus serotypes were identified. In the bivariate analysis, overcrowding RP = 1.33, (IC = 0.46–3.5), bathing in rivers (RP = 1.31, IC = 0.13–7.4), and walking barefoot (RP = 1.39, IC = 0.58–3.3) were the variables associated with leptospirosis, although the relation was not statistically significant. Conclusions. Leptospirosis prevalence in subjects under suspicion of dengue fever is high, as well as the coincidence of both infections. The results show the coexistence of overlapped outbreaks of several diseases sharing the side of transmission. It is necessary the intentional search of other pathologies, such as influenza, rickettsiosis, and brucella, among others.http://dx.doi.org/10.1155/2012/519701
spellingShingle A. Dircio Montes Sergio
E. González Figueroa
Verdalet Guzmán María Saadia
Soler Huerta Elizabeth
Rivas Sánchez Beatriz
M. Altuzar Aguilar Víctor
J. Navarrete Espinosa
Leptospirosis Prevalence in Patients with Initial Diagnosis of Dengue
Journal of Tropical Medicine
title Leptospirosis Prevalence in Patients with Initial Diagnosis of Dengue
title_full Leptospirosis Prevalence in Patients with Initial Diagnosis of Dengue
title_fullStr Leptospirosis Prevalence in Patients with Initial Diagnosis of Dengue
title_full_unstemmed Leptospirosis Prevalence in Patients with Initial Diagnosis of Dengue
title_short Leptospirosis Prevalence in Patients with Initial Diagnosis of Dengue
title_sort leptospirosis prevalence in patients with initial diagnosis of dengue
url http://dx.doi.org/10.1155/2012/519701
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