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      Detection of Crenosoma spp., Angiostrongylus vasorum and Aelurostrongylus abstrusus in Gastropods in Eastern Austria

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          Abstract

          Canine and feline cardiorespiratory parasites are of utmost relevance in veterinary medicine. Key epizootiological information on major pet metastrongyloids, i.e., Angiostrongylus vasorum and Crenosoma vulpis infecting dogs, and Aelurostrongylus abstrusus and Troglostrongylus brevior infecting cats, is missing from Austria. This study investigated their occurrence in 1320 gastropods collected in the Austrian provinces of Styria, Burgenland, Lower Austria, and in metropolitan Vienna. Metastrongyloid larvae were microscopically detected in 25 samples, and sequence analysis confirmed the presence of metastrongyloids in nine samples, i.e., A. vasorum in one slug ( Arion vulgaris) (0.07%), C. vulpis in five slugs (one Limax maximus and four A. vulgaris) (0.4%), A. abstrusus in two A. vulgaris (0.17%), and the hedgehog lungworm Crenosoma striatum was detected in one A. vulgaris. The present study confirms the enzooticity of major cardiorespiratory nematodes in Austria and that canine and feline populations are at risk of infection.

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          Rapid sequencing of rDNA from single worms and eggs of parasitic helminths.

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            Canine and feline cardiopulmonary parasitic nematodes in Europe: emerging and underestimated

            Cardiopulmonary nematodes of dogs and cats cause parasitic diseases of central relevance in current veterinary practice. In the recent past the distribution of canine and feline heartworms and lungworms has increased in various geographical areas, including Europe. This is true especially for the metastrongyloids Aelurostrongylus abstrusus, Angiostrongylus vasorum and Crenosoma vulpis, the filarioid Dirofilaria immitis and the trichuroid Eucoleus aerophilus (syn. Capillaria aerophila). The reasons of this emergence are little known but many drivers such as global warming, changes in vector epidemiology and movements in animal populations, may be taken into account. The purpose of this article is to review the knowledge of the most important heartworm and lungworm infections of dogs and cats in Europe. In particular recent advances in epidemiology, clinical and control are described and discussed.
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              Lungworms and gastrointestinal parasites of domestic cats: a European perspective.

              With the exception of Aelurostrongylus abstrusus, feline lungworms have been poorly studied. Information on their distribution is patchy and mostly limited to case reports. In this study, the occurrence of feline lungworms and co-infecting gastrointestinal parasites has been investigated in 12 European countries (i.e. Austria, Belgium, Bulgaria, France, Greece, Hungary, Italy, Portugal, Romania, Spain, Switzerland and the United Kingdom). An average of 10 domestic cats, with regular outdoor access, was sampled each month for 12months, and freshly passed faeces were collected. Stools were processed using a McMaster assay and a quantitative Baermann-Wetzel method. Animals positive for lungworms and/or gastrointestinal parasites were treated with a formulation containing fipronil, (S)-methoprene, eprinomectin, and praziquantel (Broadline®, Merial), and re-sampled 28days post-treatment. The association between lungworm infection and risk factors was analysed using statistical medians/means and the efficacy of the treatment against each lungworm species was assessed. Of 1990 cats sampled, 613 (30.8%) were positive for at least one parasite, while 210 (10.6%) were infected by lungworms. The prevalence of lungworm infection varied between the sampled sites, with the highest recorded in Bulgaria (35.8%) and the lowest in Switzerland (0.8%). None of the cats from Austria or the United Kingdom were infected by lungworms. Aelurostrongylus abstrusus was the species most frequently detected (78.1%), followed by Troglostrongylus brevior (19.5%), Eucoleus aerophilus (14.8%) and Oslerus rostratus (3.8%). The overall efficacy of the treatment was 99% for A. abstrusus and 100% for T. brevior, O. rostratus and E. aerophilus. Data presented provide a comprehensive account of the diagnosis, epidemiology and treatment of feline lungworms in Europe, as well as of the occurrence of co-infections by gastrointestinal parasites.
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                Author and article information

                Journal
                Pathogens
                Pathogens
                pathogens
                Pathogens
                MDPI
                2076-0817
                13 December 2020
                December 2020
                : 9
                : 12
                : 1046
                Affiliations
                [1 ]Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine, 1210 Vienna, Austria; 1445144@ 123456students.vetmeduni.ac.at (J.B.); 1311869@ 123456students.vetmeduni.ac.at (T.B.); 1345189@ 123456students.vetmeduni.ac.at (M.E.); 1540629@ 123456students.vetmeduni.ac.at (N.E.); tatjana@ 123456heringweb.de (T.H.); 1441150@ 123456students.vetmeduni.ac.at (S.L.); karoline.mohab@ 123456gmx.at (K.M.); 1263337@ 123456students.vetmeduni.ac.at (S.R.); 1445113@ 123456students.vetmeduni.ac.at (T.S.); doris.fasching@ 123456gmail.com (D.F.); ricardanimphy@ 123456gmail.com (R.N.); P.ANJA.P@ 123456hotmail.com (A.P.); Bita.ShahiBarogh@ 123456vetmeduni.ac.at (B.S.-B.); licha.wortha@ 123456vetmeduni.ac.at (L.N.W.); karin.bakran-lebl@ 123456vetmeduni.ac.at (K.B.-L.); anja.joachim@ 123456vetmeduni.ac.at (A.J.)
                [2 ]Faculty of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy; smorelli@ 123456unite.it (S.M.); dtraversa@ 123456unite.it (D.T.)
                [3 ]Department of Invertebrate Zoology, Natural History Museum Vienna, 1010 Vienna, Austria; michael.duda@ 123456nhm-wien.ac.at (M.D.); helmut.sattmann@ 123456nhm-wien.ac.at (H.S.)
                [4 ]Elanco Animal Health, 40789 Monheim, Germany; roland.schaper@ 123456elancoah.com
                Author notes
                [* ]Correspondence: hans-peter.fuehrer@ 123456vetmeduni.ac.at ; Tel.: +43-(1)-25077-2205
                [†]

                These two authors contributed equally to this work.

                Author information
                https://orcid.org/0000-0001-6344-0239
                https://orcid.org/0000-0001-8818-2483
                https://orcid.org/0000-0001-6809-6748
                Article
                pathogens-09-01046
                10.3390/pathogens9121046
                7764228
                33322102
                01839a21-ef0e-4ac2-939f-eca0c8485f6e
                © 2020 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 19 November 2020
                : 11 December 2020
                Categories
                Article

                angiostrongylus vasorum,aelurostrongylus abstrusus,crenosoma,austria,pcr,arion vulgaris

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