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Worm-free lambs (n = 6) were infected with 5 000 L3 of an ivermectin/benzimidazole/closantel resistant strain of H. contortus. On day 21 post infection animals were allocated according to worm egg counts, to 2 groups of 3 animals each and on day 29 one group was treated with albendazole at 3.8...

Echevarria, F. A. M.; Armour, J.; Bairden, K.; Duncan, J. L.
Journal of the South African Veterinary Association, 1993, 64, 1, pp 31-34