title: Associated Factors to Seroprevalence ofEhrlichiaspp. in Dogs of Quintana Roo, Mexico.
abstract: The objective of this study was to determine the seroprevalence toEhrlichiaspp. in dogs from Xcalak, Quintana Roo, Mexico, and the associated factors. Serum samples were obtained from 118 dogs and used in an indirect immunofluorescent assay test for the detection of antibodies againstEhrlichiaspp. A questionnaire was used to obtain information about possible variables associated with seroprevalence. These variables were analyzed through Chi2test and logistic regression. Dog seroprevalence of antibodies againstEhrlichiaspp. was 64% (75/118). Fifty-two percent (61/118) of dogs had tick infestation which was identified asRhipicephalus sanguineus sensu lato. Anemia was observed in 36% of dogs. Leucopenia (2.5%), thrombocytopenia (70%), and hemorrhage (14%) were also observed. Thirty-one percent (23/75) of dogs with anemia, 4% (3/75) of dogs with leucopenia, 80% (60/75) of dogs with thrombocytopenia, 17% (13/75) of dogs with hemorrhages, and 59% (44/75) of dogs with ticks were positive forEhrlichiaspp. antibodies. The factors associated with seroprevalence were age (1-3 and >3 years old, OR = 7.77 and OR = 15.39, resp.), tick infestation (OR = 3.13), and thrombocytopenia (OR = 3.36). In conclusion, seroprevalence ofEhrlichiaspp. was high in the community of Xcalak and its associated factors were age, tick infestation, and thrombocytopenia.
authors.affiliation: Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi" Unidad Inalámbrica, Universidad Autónoma de Yucatán, Calle 96 S/N Cruzamientos Av. Jacinto Canek y Calle 47, 97225 Merida, YUC, Mexico.
authors.forename: Pedro Pablo
authors.initials: PP
authors.lastname: Martínez-Vega
authors.affiliation: Departamento de Salud Animal y Medicina Preventiva, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km. 15.5 Carr. Mérida-Xmatkuil, AP 4-116 Itzimná, Mérida, YUC, Mexico.
authors.forename: Manuel Emilio
authors.identifier: 0000-0001-8702-9399
authors.initials: ME
authors.lastname: Bolio-Gonzalez
authors.affiliation: Departamento de Salud Animal y Medicina Preventiva, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km. 15.5 Carr. Mérida-Xmatkuil, AP 4-116 Itzimná, Mérida, YUC, Mexico.
authors.forename: Roger Iván
authors.initials: RI
authors.lastname: Rodríguez-Vivas
authors.affiliation: Departamento de Salud Animal y Medicina Preventiva, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km. 15.5 Carr. Mérida-Xmatkuil, AP 4-116 Itzimná, Mérida, YUC, Mexico.
authors.forename: Eduardo
authors.identifier: 0000-0002-8370-8367
authors.initials: E
authors.lastname: Gutierrez-Blanco
authors.affiliation: Unidad de Investigación Clínica y Epidemiología, Facultad de Medicina, Universidad Autónoma de Yucatán, Av. Itzáes No. 498, 97000 Mérida, YUC, Mexico.
authors.forename: Carlos
authors.initials: C
authors.lastname: Pérez-Osorio
authors.affiliation: Departamento de Salud Animal y Medicina Preventiva, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km. 15.5 Carr. Mérida-Xmatkuil, AP 4-116 Itzimná, Mérida, YUC, Mexico.
authors.forename: Sandra Luz
authors.initials: SL
authors.lastname: Villegas-Perez
authors.affiliation: Departamento de Salud Animal y Medicina Preventiva, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km. 15.5 Carr. Mérida-Xmatkuil, AP 4-116 Itzimná, Mérida, YUC, Mexico.
authors.forename: Carlos Humberto
authors.initials: CH
authors.lastname: Sauri-Arceo