Although Hco-pgp-9.1 was constitutively highly expressed in the resistant BSI isolate compared to the susceptible McMaster isolate at 3 h [5], and had the highest basal transcript level among the ABC transporters at 3, 6, and 12 h (Additional file S1: Fig. S7), no inducible expression pattern in response to IVM and MOX was observed. The gene discussed is ABCG2; the disease is bathing suit ichthyosis.