TABLE 3.

Susceptibilities of the resistant Haemonchus contortus (HcR-KOK) isolate to IVM, MOX, and EPR^a

Drug	Mean EC50 (nM) ± SD for HcR-KOK isolate	Fold change relative to MOX
MOX	0.21 ± 0.02	1
IVM	6.18 ± 0.50	29.4
EPR	58.85 ± 16.25	280.2

^aEC₅₀ values were calculated from LDA data. The fold change relative to MOX was calculated as the ratio of the EC₅₀ of IVM or EPR/EC₅₀ of MOX.