Percent survival of St John- and Penobscot- derived Atlantic salmon with and without a prior <i>L</i>. <i>salmonis</i> infection post–exposure to ISAv-infected cohab fish.

Data combined from duplicate tanks per treatment group: no lice no ISAv, no lice plus ISAv and lice plus ISAv (St John versus Penobscot derived fish, n = 15 and 29, n = 23 and 25, n = 17 and 26, respectively).