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Arsenopoulos K, Minoudi S, Symeonidou I, Triantafyllidis A, Katsafadou AI, Lianou DT, Fthenakis GC, Papadopoulos E. Frequency of Resistance to Benzimidazoles of Haemonchus contortus Helminths from Dairy Sheep, Goats, Cattle and Buffaloes in Greece. Pathogens 2020; 9:pathogens9050347. [PMID: 32375252 PMCID: PMC7280990 DOI: 10.3390/pathogens9050347] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 11/17/2022] Open
Abstract
The study investigated the presence of resistance to benzimidazoles in Haemonchus contortus helminths from ruminant species in Greece through the detection of the Phe/Tyr polymorphism in the amino acid at position 200 of the β-tubulin protein. In total, 288 adult female H. contortus helminths collected from the abomasum of various ruminant animals in Greece were tested. Of these, 96 were collected from sheep, 96 from goats, 48 from cattle, and 48 from buffaloes. The frequencies of the homozygous and heterozygous resistant genotypes at the position 200 of the β-tubulin gene of helminths recovered from sheep were 96.9% and 3.1%, respectively. The frequencies of the homozygous and heterozygous resistant genotypes, respectively, were 100.0% and 0.0% in helminths from goats, 25.0% and 75.0% in helminths from cattle and 8.3% and 91.7% in helminths from buffaloes. In all parasitic populations, no homozygous susceptible genotypes were detected. The present study highlighted, for the first time, the emergence of benzimidazole-resistant H. contortus in goats, cattle, and buffaloes in Greece, using an allele-specific PCR. It is postulated that benzimidazole-resistant alleles were transferred from sheep or goats to cattle and buffaloes at the commonly grazing pastures in Greece.
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Affiliation(s)
- Konstantinos Arsenopoulos
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (K.A.); (I.S.)
| | - Styliani Minoudi
- Laboratory of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.M.); (A.T.)
| | - Isaia Symeonidou
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (K.A.); (I.S.)
| | - Alexandros Triantafyllidis
- Laboratory of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.M.); (A.T.)
| | - Angeliki I. Katsafadou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (A.I.K.); (D.T.L.); (G.C.F.)
| | - Daphne T. Lianou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (A.I.K.); (D.T.L.); (G.C.F.)
| | - George C. Fthenakis
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (A.I.K.); (D.T.L.); (G.C.F.)
| | - Elias Papadopoulos
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (K.A.); (I.S.)
- Correspondence:
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