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Rose Vineer H, Morgan ER, Hertzberg H, Bartley DJ, Bosco A, Charlier J, Chartier C, Claerebout E, de Waal T, Hendrickx G, Hinney B, Höglund J, Ježek J, Kašný M, Keane OM, Martínez-Valladares M, Mateus TL, McIntyre J, Mickiewicz M, Munoz AM, Phythian CJ, Ploeger HW, Rataj AV, Skuce PJ, Simin S, Sotiraki S, Spinu M, Stuen S, Thamsborg SM, Vadlejch J, Varady M, von Samson-Himmelstjerna G, Rinaldi L. Increasing importance of anthelmintic resistance in European livestock: creation and meta-analysis of an open database. Parasite 2020; 27:69. [PMID: 33277891 PMCID: PMC7718593 DOI: 10.1051/parasite/2020062] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/02/2020] [Indexed: 11/15/2022] Open
Abstract
Helminth infections are ubiquitous in grazing ruminant production systems, and are responsible for significant costs and production losses. Anthelmintic Resistance (AR) in parasites is now widespread throughout Europe, although there are still gaps in our knowledge in some regions and countries. AR is a major threat to the sustainability of modern ruminant livestock production, resulting in reduced productivity, compromised animal health and welfare, and increased greenhouse gas emissions through increased parasitism and farm inputs. A better understanding of the extent of AR in Europe is needed to develop and advocate more sustainable parasite control approaches. A database of European published and unpublished AR research on gastrointestinal nematodes (GIN) and liver fluke (Fasciola hepatica) was collated by members of the European COST Action "COMBAR" (Combatting Anthelmintic Resistance in Ruminants), and combined with data from a previous systematic review of AR in GIN. A total of 197 publications on AR in GIN were available for analysis, representing 535 studies in 22 countries and spanning the period 1980-2020. Reports of AR were present throughout the European continent and some reports indicated high within-country prevalence. Heuristic sample size-weighted estimates of European AR prevalence over the whole study period, stratified by anthelmintic class, varied between 0 and 48%. Estimated regional (country) prevalence was highly heterogeneous, ranging between 0% and 100% depending on livestock sector and anthelmintic class, and generally increased with increasing research effort in a country. In the few countries with adequate longitudinal data, there was a tendency towards increasing AR over time for all anthelmintic classes in GIN: aggregated results in sheep and goats since 2010 reveal an average prevalence of resistance to benzimidazoles (BZ) of 86%, macrocyclic lactones except moxidectin (ML) 52%, levamisole (LEV) 48%, and moxidectin (MOX) 21%. All major GIN genera survived treatment in various studies. In cattle, prevalence of AR varied between anthelmintic classes from 0-100% (BZ and ML), 0-17% (LEV) and 0-73% (MOX), and both Cooperia and Ostertagia survived treatment. Suspected AR in F. hepatica was reported in 21 studies spanning 6 countries. For GIN and particularly F. hepatica, there was a bias towards preferential sampling of individual farms with suspected AR, and research effort was biased towards Western Europe and particularly the United Kingdom. Ongoing capture of future results in the live database, efforts to avoid bias in farm recruitment, more accurate tests for AR, and stronger appreciation of the importance of AR among the agricultural industry and policy makers, will support more sophisticated analyses of factors contributing to AR and effective strategies to slow its spread.
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Affiliation(s)
- Hannah Rose Vineer
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool Neston, Cheshire CH64 7TE UK
| | - Eric R. Morgan
- Institute for Global Food Security, Queen’s University Belfast, Biological Sciences 19 Chlorine Gardens Belfast BT9 5DL UK
| | | | - David J. Bartley
- Disease Control, Moredun Research Institute, Pentlands Science Park, Bush Loan Penicuik, Edinburgh EH26 0PZ UK
| | - Antonio Bosco
- University of Naples Federico II, Unit of Parasitology and Parasitic Diseases, Department of Veterinary Medicine and Animal Production, CREMOPAR Via Delpino, 1 80137 Napoli Italy
| | | | | | - Edwin Claerebout
- Laboratory for Parasitology, Faculty of Veterinary Medicine, Ghent University B9820 Merelbeke Belgium
| | - Theo de Waal
- School of Veterinary Medicine, University College Dublin Dublin D04 W6F6 Ireland
| | | | - Barbara Hinney
- Institute of Parasitology, Department of Pathobiology, Vetmeduni Vienna Veterinärplatz 1 1210 Vienna Austria
| | - Johan Höglund
- Swedish University of Agricultural Sciences, Department of Veterinary Public Health, Section for Parasitology P.O. Box 7036 Uppsala Sweden
| | - Jožica Ježek
- Clinic for Reproduction and Large Animals, Veterinary faculty, University of Ljubljana Gerbičeva 60 1000 Ljubljana Slovenia
| | - Martin Kašný
- Department of Botany and Zoology, Faculty of Science, Masaryk University Brno 611 37 Czech Republic
| | - Orla M. Keane
- Animal Bioscience Department, Teagasc Grange, Dunsany, Co. Meath C15 PW93 Ireland
| | | | - Teresa Letra Mateus
- CISAS – Centre for Research and Development in Agrifood Systems and Sustainability, Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Àlvares 4900-347 Viana do Castelo Portugal
- EpiUnit – Instituto de Saúde Pública da Universidade do Porto Rua das Taipas, nº 135 4050-091 Porto Portugal
| | - Jennifer McIntyre
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Garscube Estate Glasgow G61 1QH UK
| | - Marcin Mickiewicz
- Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences Nowoursynowska 159c 02-776 Warsaw Poland
| | - Ana Maria Munoz
- Faculdade de Medicina Veterinária – Universidade Lusófona de Humanidades e Tecnologias Av. Campo Grande 376 1749-024 Lisbon Portugal
| | - Clare Joan Phythian
- Institute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences Sandnes 4325 Norway
| | - Harm W. Ploeger
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University Yalelaan 1 3584 CL Utrecht The Netherlands
| | - Aleksandra Vergles Rataj
- Institute for Microbiology and Parasitology, Veterinary Faculty, University of Ljubljana Gerbičeva 60 1000 Ljubljana Slovenia
| | - Philip J. Skuce
- Disease Control, Moredun Research Institute, Pentlands Science Park, Bush Loan Penicuik, Edinburgh EH26 0PZ UK
| | - Stanislav Simin
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad 21101 Novi Sad Republic of Serbia
| | - Smaragda Sotiraki
- Veterinary Research Institute, Section for Parasitology, HAO-DEMETER, Thermi 57001 Thessaloniki Greece
| | - Marina Spinu
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca 400372 Romania
| | - Snorre Stuen
- Institute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences Sandnes 4325 Norway
| | - Stig Milan Thamsborg
- Section for Parasitology and Aquatic Pathobiology, Department of Veterinary and Animal Sciences, University of Copenhagen DK-1870 Frederiksberg C Denmark
| | - Jaroslav Vadlejch
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague Kamycka 129 165 00 Prague Suchdol Czech Republic
| | - Marian Varady
- Institute of Parasitology of the Slovak Academy of Sciences Kosice 040 01 Slovakia
| | - Georg von Samson-Himmelstjerna
- Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin Robert-von-Ostertag-Str. 7–13 14163 Berlin Germany
| | - Laura Rinaldi
- University of Naples Federico II, Unit of Parasitology and Parasitic Diseases, Department of Veterinary Medicine and Animal Production, CREMOPAR Via Delpino, 1 80137 Napoli Italy
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