lys-7(ok1384)abl-1(ok171) double mutants remain hypersensitive to C. neoformans (A), similar to their corresponding single mutants; p<0.0001, [abl-1(ok171)lys-7(ok1384) n = 133; N2 n = 150], but the resistance exhibited by the single mutants to S. Typhimurium infection (B) has been completely suppressed; p>0.2, [abl-1(ok171)lys-7(ok1384) n = 110; N2 n = 94]. Double mutants between lys-7 and fat-5 or lys-7 and rga-6 were hypersensitive to C. neoformans infection (C), p<0.0001 in both cases, [N2 n = 207; lys-7(ok1384)fat-5(tm420) n = 100; lys-7(ok1384)rga-6(ok1316) n = 100]. Similarly, the resistance to S. Typhimurium exhibited by the lys-7 knockout strain was either unaltered (fat-5) or only slightly reduced (rga-6) by these secondary mutations (D), [N2 n = 170; lys-7(ok1384)fat-5(tm420) n = 100; lys-7(ok1384)rga-6(ok1316) n = 100].