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peridomestic infection as a determinant of dengue transmission: Protocol

By Ruth Aralí Martínez-vega, Rogelio Danis-lozano, Jorge Velasco-hernández, Fredi Alex, Er Díaz-quijano, Mariana González-fernández, René Santos, Susana Román, Jorge Argáez-sosa, Miguel Nakamura and José Ramos-castañeda

Abstract

Background: Vector control programs, which have focused mainly on the patient house and peridomestic areas around dengue cases, have not produced the expected impact on transmission. This project will evaluate the assumption that the endemic/epidemic transmission of dengue begins around peridomestic vicinities of the primary cases. Its objective is to assess the relationship between symptomatic dengue case exposure and peridomestic infection incidence. Methods/Design: A prospective cohort study will be conducted (in Tepalcingo and Axochiapan, in the state of Morelos, Mexico), using the state surveillance system for the detection of incident cases. Paired blood specimens will be collected from both the individuals who live with the incident cases and a sample of subjects residing within a 25-meter radius of such cases (exposed cohort), in order to measure dengue-specific antibodies. Other subjects will be selected from areas which have not presented any incident cases within 200 meters, during the two months preceding the sampling (non-exposed cohort). Symptomatic/asymptomatic incident infection will be considered as the dependent variable, exposure to confirmed dengue cases, as the principal variable, and the socio-demographic, environmental and socio-cultural conditions of the subjects, as additional explanatory variables. Discussion: Results indicating a high infection rate among the exposed subjects would justify the application o

Topics: Dengue, Transmission, Peridomestic, C
Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.1873
Provided by: CiteSeerX
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