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Volume 12, Number 4—April 2006
Research

Human Trypanosoma cruzi Infection and Seropositivity in Dogs, Mexico

Jose G. Estrada-Franco*1, Vandanajay Bhatia*1, Hector Diaz-Albiter†, Laucel Ochoa-Garcia†, Alberto Barbabosa‡, Juan C. Vazquez-Chagoyan‡, Miguel A. Martinez-Perez‡, Carmen Guzman-Bracho§, and Nisha Garg*Comments to Author 
Author affiliations: *University of Texas Medical Branch, Galveston, Texas, USA; †Instituto de Salud del Estado de Mexico, Toluca, Mexico; ‡Universidad Autonoma del Estado de Mexico, Toluca, Mexico; §Instituto de Diagnostico y Referencia Epidemiologicos Secretaría de Salud, Mexico City, Mexico

Main Article

Table 3

Prevalence of antibodies to Trypanosoma cruzi in dogs in the southern area of the State of Mexico

Municipality Village No. screened Seropositivity,* no. (%)
IgG positive† IgM positive‡ IgG and IgM positive
Tejupilco El Carmen Ixtapan 16 5 (31.3) 0 5 (31.3)
Rincon del Carmen 42 10 (23.8) 13 (30.9) 16 (38.0)
Rio Grande 24 1 (4.2) 0 1 (4.2)
Tejupilco 10 1 (10.0) 0 1 (10.0)
Zacatapec 22 1 (4.5) 0 1 (4.5)
Subtotal 114 18 (15.8) 13 (11.4) 24 (21.0)
Toluca 80 8 (10.0) 12 (15.0) 14 (17.5)
Northern area§ 24 0 0 0
Chiapas 28 11 (39.3) 4 (14.3) 12 (42.8)

*IgG, immunoglobulin G. p<0.001 for IgG, IgM, and IgG plus IgM seropositivity.
†IgG-seropositive dogs were 8 mo to 6 y of age; 85% were >2 y of age.
‡IgM-seropositive dogs were 4 months to 6 years of age; a similar distribution was observed in all age groups.
§Northern villages of Apaxco, Hueypoxita, Jaltenco, and Nextlalpan were included in this group.

Main Article

1These authors contributed equally to this work.

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Page updated: January 23, 2012
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