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Echinococcosis in pigs and intestinal infection with Echinococcus spp. in dogs in southwestern Lithuania.

Abstract

Cystic echinococcosis is a major emerging zoonosis in many Eastern European and Asian countries. Post slaughter examinations of 684 pig livers in Lithuania revealed significantly higher numbers of Echinococcus granulosus infections in animals from family farms (13.2%; 95% CI 10.7-16.2) as compared with those from industrial farms (4.1%; 95% CI 0.8-11.5). The prevalence was also significantly higher in pigs older than 1 year than in younger ones. In addition, in 0.5% of the pigs from the family farms, infertile and calcified E. multilocularis lesions were identified by PCR. Faecal samples from rural dogs (n=240) originating from 177 family farms in 12 villages were investigated for taeniid eggs with two methods. Significantly more dogs excreting taeniid eggs were diagnosed with the flotation/sieving method (n=34) as compared to the modified McMaster method (n=12). Multiplex PCR performed with DNA from taeniid eggs isolated from faeces of 34 dogs revealed 26 infections with Taenia spp., 9 with E. granulosus and 2 with E. multilocularis (4 cases with concurrent Taenia spp. and E. granulosus or E. multilocularis infections). Genotyping of E. granulosus cyst tissues from 7 pigs, 1 head of cattle and from E. granulosus eggs from 8 dog faeces revealed the genotype G6/7 ('pig/camel strain') in all cases. The high infection pressure with Echinococcus spp. in family farms necessitates initiating control programs.

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  • Publisher Full Text
  • Authors

    Bruzinskaite R, Sarkūnas M, Torgerson PR, Mathis A, Deplazes P

    Source

    Veterinary parasitology 160:3-4 2009 Mar 23 pg 237-41

    MeSH

    Age Factors
    Animals
    Base Sequence
    Cattle
    Cattle Diseases
    DNA, Helminth
    Dog Diseases
    Dogs
    Echinococcosis, Hepatic
    Echinococcus granulosus
    Feces
    Female
    Genotype
    Intestinal Diseases, Parasitic
    Lithuania
    Male
    Molecular Sequence Data
    Parasite Egg Count
    Prevalence
    Risk Factors
    Sequence Alignment
    Swine
    Swine Diseases
    Zoonoses

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    19111990