Intestinal helminths of wild Canidae from the Kazakhstan steppe ecosystems
2020
Abstract
An epidemiological study of helminths in 39 wolves (Canis lupus), 15 foxes (Vulpes vulpes)
and 13 corsacs (Vulpes corsac) collected from the steppes of the central, northern and western
regions of Kazakhstan in 2018-2019, revealed 11 helminth species at autopsy, including
pathogens of such zoonoses as echinococcosis, trichinellosis and toxocariasis. Species Taenia
taeniaformis (prevalence 7.7%), Dipylidium caninum (2.6%), Echinococcus multilocularis
(2.6%), Toxocara canis (10.3%) and Dirofilaria immitis (2.6%) were found only in wolves.
Prevalence of Alaria alata in corsacs was 7.7% and in wolves 5.2%. Taenia spp. was found
in 40% of foxes and 43.6% of wolves. Infection level with Macracanthorynchus catulinus
among foxes was 26.7%, and in wolves 2.6%. Trichinella spp. larvae infected 6.7% of foxes
and 17.9% of wolves. Mesocestoides lineatus were noted in all species of canine (V. corsac,
V. vulpes, C. lupus) with the prevalence of 7.7%, 13.3% and 2.6%, and Toxascaris leonina
infected 7.7%, 6.7% and 5.61% of these species of predators, respectively. Thus, populations
of wild Canidae are forming natural foci of zoonotic invasions in the habitat regions.
Key words: helminths, wolf, fox, corsac, prevalence, Kazakhstan, zoonoses
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