CANINE VISCERAL LEISHMANIASIS CASE INVESTIGATION IN THE JACARE REGION OF NITEROI, RIO DE JANEIRO, BRAZIL

• Published in: Revista do Instituto de Medicina Tropical de São Paulo
• Main Authors: Amanda Codeço de OLIVEIRA, Fabiano Borges FIGUEIREDO, Valmir Laurentino SILVA, Fernanda Nunes SANTOS, Marcos Barbosa de SOUZA, Maria de Fátima MADEIRA, Tuanne Rotti ABRANTES, André Reynaldo Santos PÉRISSÉ
• Format: Article in Journal/Newspaper
• Language: English
• Published: Universidade de São Paulo (USP) 2015
• Subjects: Visceral leishmaniasis; Epidemiology; Dogs; Arctic medicine. Tropical medicine; RC955-962; Infectious and parasitic diseases; RC109-216; Arctic
• Online Access: https://doi.org/10.1590/S0036-46652015000400009; https://doaj.org/article/4b045d48b3784555ac4ad221a35c4a1a

SUMMARY American visceral leishmaniasis is a vector-borne zoonosis in expansion in Brazil. Dogs are the main urban reservoir. Departing from a case of canine visceral leishmaniasis (CVL) in Jacaré, Niterói, Rio de Janeiro State, an epidemiological canine and entomological study was performed to assess the extension of the disease at the location. Sample was collected around the case and the dogs identified by serological tests (rapid double platform immunochromatographic exams, immunoenzymatic assay/ELISA, indirect immunofluorescence/IFAT). The parasitological diagnosis was performed in animals positive in at least one of these tests. The entomological study was carried out by using light traps and manual collection. The associations between canine variables and outcome (ELISA and IFAT reagents) were assessed by the chi-square test and adjusted by multivariate logistic regression for those associations with p < 0.1 in the bivariate analysis. Seventeen cases of CVL were detected among 110 evaluated dogs (prevalence of 15.5%). Presence of ectoparasites (OR 6.5; 95% CI 1.1-37.4), animals with clinical signs (OR 9.5; 95% CI 1.2-76.6), and previous cases of CVL in the same house (OR 17.9; 95% CI 2.2-147.1) were associated with the outcome. Lutzomyia longipalpiswas not detected. Our results are indicative of an ongoing transmission in the area.