Visceral leishmaniasis control actions: epidemiological indicators for its effectiveness evaluation in a Brazilian urban area.

Autor: Morais MHF; Gerência de Controle de Zoonoses, Prefeitura de Belo Horizonte, Belo Horizonte, Brasil., Sabroza PC; Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil., Pessanha JE, Sobral A; Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil.
Jazyk: angličtina
Zdroj: Cadernos de saude publica [Cad Saude Publica] 2020 Jun 08; Vol. 36 (6), pp. e00060219. Date of Electronic Publication: 2020 Jun 08 (Print Publication: 2020).
DOI: 10.1590/0102-311X00060219
Abstrakt: This research applies indicators concerning control of the visceral leishmaniasis canine reservoir in the city of Belo Horizonte, Minas Gerais State, Brazil. Data were obtained from the Zoonoses Control Information System (SCZOO) and the Brazilian Information System on Diseases of Notification (SINAN) database. First we analyzed (i) existing associations between canine epidemiological indicators, where the dependent variable was the canine seroprevalence A (2007 to 2013), and the independent variables were, as follows: canine seroprevalence B (2006 to 2012); percentage of positive dogs by ELISA test reagents that were not euthanized; the relationship between the human and canine population; canine population testing coverage by census surveys; and the years of study (2006 to 2013); (ii) then, we examined the association between human visceral leishmaniasis (HVL) cases between 2007 to 2013 and the mentioned variables related to dogs and years. Statistical analysis was done by a generalized linear model (GLM). One unit increases in canine seroprevalence B and canine seroprevalence A were associated to 13% and 12% increases in HVL rates, respectively. The increase in one human/dog ratio unit was associated with a 13% decrease in HVL rates. Canine seroprevalence, human/dog ratio and non-euthanasia of ELISA-reactive dogs in the environment were adequate indicators for analyzing the canine enzootic transmission and the occurrence of HVL cases.
Databáze: MEDLINE