title: Recovery of Fascioloides magna (Digenea) population in spite of treatment programme? Screening of Galba truncatula (Gastropoda, Lymnaeidae) from Lower Austria.
abstract: During the past decade, Fascioloides magna, the large American liver fluke, has spread within free-living deer in wetlands of the Danube in Lower Austria. The aim of this study was to determine the current infection rates with F. magna and other digenean parasites in the intermediate host snail Galba truncatula from risk areas in Lower Austria. A total of 3444 G. truncatula were collected and examined microscopically for the presence of digenean trematodes. A set of randomly selected snails and isolated trematode stages were also investigated molecular biologically by PCR and sequencing. Digenean parasites were detected with a prevalence of 2.41% (1.83% Paramphistomoidea; 0.46% Echinostomatoidea; 0.09% Strigeida; 0.06% Plagiorchiida). F. magna was found with an overall prevalence of 0.23%, which may indicate a recovery of the parasite population in spite of an ongoing triclabendazole treatment programme. Moreover, high risk areas and a seasonality of infections were observed.
authors.affiliation: Institute of Specific Prophylaxis and Tropical Medicine, Medical University Vienna, 1090 Vienna, Austria.
authors.forename: Michaela
authors.initials: M
authors.lastname: Haider
authors.forename: Christoph
authors.initials: C
authors.lastname: Hörweg
authors.forename: Kerstin
authors.initials: K
authors.lastname: Liesinger
authors.forename: Helmut
authors.initials: H
authors.lastname: Sattmann
authors.forename: Julia
authors.initials: J
authors.lastname: Walochnik
mesh_terms: D000818:Animals; D000871:Anthelmintics / Q000008:administration & dosage / Q000627:therapeutic use; D001317:Austria / Q000453:epidemiology; D001562:Benzimidazoles / Q000008:administration & dosage / Q000627:therapeutic use; D018509:DNA, Helminth / Q000302:isolation & purification; D003670:Deer; D005212:Fasciolidae / Q000502:physiology*; D049851:Gastropoda / Q000469:parasitology*; D006790:Host-Parasite Interactions; D016133:Polymerase Chain Reaction; D013997:Time Factors; D014201:Trematode Infections / Q000188:drug therapy / Q000453:epidemiology / Q000662:veterinary*; D000077682:Triclabendazole
chemical_list: D000871:Anthelmintics; D001562:Benzimidazoles; D018509:DNA, Helminth; D000077682:Triclabendazole