2009
DOI: 10.1007/s00436-009-1466-1
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Standardization of the egg hatch test for the detection of benzimidazole resistance in parasitic nematodes

Abstract: The ability to reliably detect anthelmintic resistance is a crucial part of resistance management. If data between countries are to be compared, the same test should give the same results in each laboratory. As the egg hatch test for benzimidazole resistance is used for both research and surveys, the ability of different laboratories to obtain similar results was studied through testing of known isolates of cyathostomins, Haemonchus contortus, Ostertagia ostertagi, and Cooperia oncophora in programs supported … Show more

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Cited by 113 publications
(73 citation statements)
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“…33,34 In veterinary parasites, the EHA has been standardized, even if from one study to another some variations remain. 35 For instance, it has been clearly defined for some veterinary nematodes that when the LC 50 is in excess of 0.1 μg/mL of thiabendazole that the parasite isolate is considered to be BZ resistant. 36 Since 1999, the development of the EHA in human hookworms has been supported by the World Health Organization (WHO) and the assays have been applied in several studies that proved its ability to give quantitative and qualitative measurements of the effect of thiabendazole on hatching of the eggs.…”
Section: Discussionmentioning
confidence: 99%
“…33,34 In veterinary parasites, the EHA has been standardized, even if from one study to another some variations remain. 35 For instance, it has been clearly defined for some veterinary nematodes that when the LC 50 is in excess of 0.1 μg/mL of thiabendazole that the parasite isolate is considered to be BZ resistant. 36 Since 1999, the development of the EHA in human hookworms has been supported by the World Health Organization (WHO) and the assays have been applied in several studies that proved its ability to give quantitative and qualitative measurements of the effect of thiabendazole on hatching of the eggs.…”
Section: Discussionmentioning
confidence: 99%
“…The test was based on the method described by Von Samson-Himmelstjerna, Coles, and Jackson (2009). Dilutions of the A. mearnsii extract (EA) were prepared using distilled water.…”
Section: Egg Eclodibility Assay (Eea)mentioning
confidence: 99%
“…O TEO tem sido utilizado com várias modificações por uma série de pesquisadores, para a detecção de resistência a BZs e LEV. Um protocolo-padrão para a detecção de resistên-cia aos BZs está disponível (Samson-Himmelstjerna et al 2009a), e laboratórios de toda a Europa utilizam a mesma metodologia. A maioria dos estudos que avaliaram o uso do TEO para a detecção de nematoides resistentes aos BZs mostrou uma boa concordância com os resultados obtidos com o TRCOF em ovinos (Várady et al 2006, Díez-Baños et al 2008) e bovinos (Demeler et al 2012a).…”
Section: Técnicas In Vitrounclassified