Primers for R. salmoninarum (Rs1: 50-CAA GGT
GAA GGG AAT TCT TCC ACT-30; Rs2: 50-GAC
GGC AAT GTC CGT TCC CGG TTT-30), A.
hydrophila (AH1 50-GAAAGGTTGATGCCTAATACGTA-
30; AH2 50-CGT GCT GGC AAC AAA
GGA CAG-30), Y. ruckeri (YerF 50-GCG AGG AGG
AAG GGT TAA GTG -30; YerR 50-GAA GGC ACC
AAG GCA TCT CTG-30) were described by Brown
et al. (1994), Nielsen et al. (2001), and Altinok et al.
(2001), respectively. Primers used in the detection of
A. salmonicida (ASF 50-CGT TGG ATA TGG CTC
TTC CT-30; ASR 50-CTC AAA ACG GCT GCG TA-
30) were modified based on primers described by
Hiney et al. (1992). The reverse primer (161B 50-GCA
CGG AGT TAG CCG ATC-30) used for detection of F.
columnare was described by Yeh et al. (2006) but the
forward primer (FCF 50-AAG GCA ACG ATG GGT
AG-30) was modified.