<i>Dioctophyme renale</i>: prevalence and risk factors of parasitism in dogs of São Cristóvão district, Três Barras county, Santa Catarina State, Brazil

Pedrassani, Daniela; Nascimento, Adjair Antonio do; André, Marcos Rogério; Machado, Rosangela Zacarias

doi:10.1590/S1984-29612017004

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Revista Brasileira de Parasitologia Veterinária

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Original Article • Rev. Bras. Parasitol. Vet. 26 (01) • Jan-Mar 2017 • https://doi.org/10.1590/S1984-29612017004 copy

Dioctophyme renale: prevalence and risk factors of parasitism in dogs of São Cristóvão district, Três Barras county, Santa Catarina State, Brazil

Dioctophyme renale: prevalência e fatores de risco de parasitismo em cães no distrito de São Cristóvão, Três Barras, Santa Catarina, Brasil

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Abstract

Dioctophyme renale is a nematode that can be found parasitizing the kidney, peritoneal cavity and, rarely, other organs of canids and mustelids. This disease has high occurrence in the municipality of Três Barras, state of Santa Catarina, thus making this an interesting area to study the epidemiological aspects of infection by D. renale in dogs. Among 197 dogs, 14.2% showed the parasite eggs in urine and 16.4% showed IgG antibodies anti-D. renale in serum samples according to the indirect ELISA method; among seropositive dogs, 15 (37.5%) animals did not show any parasite eggs in their urine. Parasitism was more frequent in females, and there was no finding of interference from age on parasitism. Factors such as water potential and presence of paratenic hosts in the studied region were reported by the owners of dogs and may have contributed to the occurrence of parasitism.

Keywords:
Kidney worm; Dioctophyma renale; epidemiology; ELISA

Risk factor	D. renale-positive (Cases)		D. renale-negative (Controls)		PR (95% CI)	P
	N	%	n	%
Dog’s sex
Male Female	17 11	60.7 39.3	141 28	83 17	0.38 (0.19-0.75) 2.62^* * Significant with 5% probability. (1.34-5.14)	0.0052
Dog’s age
Up to 5 years Over 5 years	19 9	67.8 32.2	131 38	77.5 22.5	0.66 (0.32-1.36) 1.51 (0.73-3.11)	0.2667
Owner is fed with fish from the Canoinhas river
Yes No	17 11	60.7 39.3	59 110	35 65	2.46^* * Significant with 5% probability. (1.22-4.97) 0.41 (0.20-0.82)	0.0093
Owner feeds dog with raw fish or raw viscera of fish
Yes No	11 17	39.3 60.7	32 137	19 81	2.32^* * Significant with 5% probability. (1.18-4.57) 0.43 (0.22-0.85)	0.0157
Dog plays with, bites or eats frogs
Yes No	15 13	53.5 46.5	52 117	30.7 69.3	2.24^* * Significant with 5% probability. (1.13-4.43) 0.45 (0.23-0.88)	0.0183
Dog overturns trash can and has access to food remains
Yes No	15 13	53.5 46.5	71 98	42 58	1.49 (0.75-2.96) 0.67 (0.34-1.34)	0.2533
Dog frequents the nearby Canoinhas river
Yes No	21 07	75 25	98 71	58 42	1.97 (0.88-4.40) 0.51(0.23-1.14)	0.0882
Dog drinks water from the Canoinhas river
Yes No	18 10	64 36	54 115	32 68	3.13^* * Significant with 5% probability. (1.53-6.40) 0.32 (0.16-0.66)	0.0009
Dog drinks water from flow channels of the Canoinhas river
Yes No	20 08	71.4 28.6	70 99	41.4 58.6	2.97^* * Significant with 5% probability. (1.38-6.42) 0.34 (0.16-0.73)	0.0031
Owner already noted annelids in the Canoinhas river
Yes No	10 18	36 64	63 106	37.2 62.8	0.94 (0.46-1.93) 1.06(0.52-2.17)	0.8739

Colégio Brasileiro de Parasitologia Veterinária FCAV/UNESP - Departamento de Patologia Veterinária, Via de acesso Prof. Paulo Donato Castellane s/n, Zona Rural, , 14884-900 Jaboticabal - SP, Brasil, Fone: (16) 3209-7100 RAMAL 7934 - Jaboticabal - SP - Brazil
E-mail: cbpv_rbpv.fcav@unesp.br

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[1] *Corresponding author: Daniela Pedrassani. Departamento de Medicina Veterinária, Universidade do Contestado – UnC, Rua Roberto Ehlke, 86, CEP 89460-000, Canoinhas, SC, Brasil. e-mail: daniela@unc.br