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Effect of selection pressure for thiabendazole resistance on fitness of Haemonchus contortus in sheep
(1990-04)
A strain of Haemonchus contortus showing moderate levels of resistance to thiabendazole (TBZ) (egg hatch assay LC50 2.1 microM) was subjected, in alternating sequence, to 5 in vitro and 4 in vivo selections with TBZ. This ...