J Parasitol. 1991 Aug;77(4):557-61.

Canine leishmaniasis: pathological and ecological factors influencing transmission of infection.

Abranches P, Silva-Pereira MC, Conceição-Silva FM, Santos-Gomes GM, Janz JG.

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Instituto de Higiene e Medicina Tropical, Lisboa, Portugal.

Abstract

Canine leishmaniasis was studied in 1,823 dogs from the Lisbon metropolitan region. The breeds most affected were doberman and German shepherd, independent of sex and use. Young adult (12.2%) and older dogs (14.7%) had higher prevalences of infection. Parasitological confirmation of serological diagnosis was higher in dogs with indirect fluorescent antibody test titer greater than or equal to 1:512, indicating that parasitological patency is a late event. Exposure of Leishmania in lymph nodes is more efficient for parasitological confirmation (75.4% of cases). Frequent signs of disease were enlarged lymph nodes and onychogriphosis. However, 53.8% of the dogs with significant antibody titers (greater than or equal to 1:128) showed no symptom, suggesting that canine leishmaniasis has a prolonged asymptomatic period. This study confirmed the importance of the dog as the reservoir of visceral leishmaniasis.

PMID:: 1865262; [PubMed - indexed for MEDLINE]

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