[Prevalence of dengue and leptospira antibodies in the state of Veracruz, Mexico].
OBJECTIVE
To discover the prevalence of antibodies against denguevirus and leptospira.


METHODS
A cross-sectional study was carried out in 500 inhabitants of Veracruz, Mexico through household sampling, administration of a questionnaire and collection of blood samples.The presence of IgG antibodies was determined and factors associated with seroprevalence were evaluated using a logistic regression model.


RESULTS
Total denguevirus seroprevalence was 79.6% (IC 95% 76-81). The main factors associated with infection were age and residence in neighborhoods with higher vectorial indices (RMP = 2.94, IC 95% 1.46-6.1). Overall seroprevalence against leptospira was 4% (IC 95% 2-6). Prevalence was higher in the 25 to 44 years age group (35%, IC 95% 15-59). Seroprevalence in individuals who referred to living with dogs, pigs, cows and rats was 25% (IC 95% 0.63-80). Eighty-five percent of individuals who were leptospira positive were also dengue positive.


CONCLUSIONS
The prevalence of denguevirus antibodies suggests the risk of serious dengue hemorrhagic outbreaks. Although leptospirosis prevalence was low, the coexistence of both agents was confirmed.
Navarrete-Espinosa
Joel
J
Coordinación de Programas Integrados de Salud, Unidad de Salud Pública, Instituto Mexicano del Seguro Social, DF México. joel.navarrete@imss.gob.mx
Acevedo-Vales
Juan Antonio
JA
Huerta-Hernández
Emilia
E
Torres-Barranca
Jorge
J
Gavaldón-Rosas
Dolores Guadalupe
DG
D000293:Adolescent; D000328:Adult; D000368:Aged; D000907:Antibodies, Bacterial / Q000097:blood*; D000914:Antibodies, Viral / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D003715:Dengue / Q000097:blood / Q000453:epidemiology*; D003716:Dengue Virus / Q000276:immunology*; D005260:Female; D006801:Humans; D007223:Infant; D007919:Leptospira / Q000276:immunology*; D007922:Leptospirosis / Q000097:blood / Q000453:epidemiology*; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D015995:Prevalence; D016036:Seroepidemiologic Studies
D000907:Antibodies, Bacterial; D000914:Antibodies, Viral