Table 1: ETEC and non-ETEC reference strains used as controls in PCR assays.

TypeStrainSerotypeToxin typeCS typeSource

ETECE24377AO139:H28LT/ST CS1, CS3 Levine et al., 1984 [39]
ETEC910980-2O25:NM STh CS4, CS6 NMRCb
ETECW6520AO114:H49 LT CS7 NMRC
ETECWS6866B-2NK LT CS8 (i.e., CFA/III) NMRC
ETECM421C1NK LT/STh CS5, CS6 VUc
ETECWS6474DO68:H12 LTST CS12 (i.e., PCFO159) NMRC
ETEC911205O64:NM LT CS13 (i.e., PCFO9) NMRC
ETECE7476AO166:H27 STh CS14 NMRC
ETEC8786O117:H4 ST CS15 (i.e., 8786) NMRC
ETECWS6788AO8:H9 LT CS17 NMRC
ETECARG-2O20:H− LT CS18 (i.e., PCFO20) NMRC
ETECDS26-1O8:H9LTCS19NMRC
ETECWS7179A-2O17:H45LTSTCS20NMRC
ETEC H10407aO78:H11LT/STh-STpCFA/IEvans et al., 1975 [40]
ETEC145C2NKLT/SThCS2, CS3, CS21VU
ETECE9034ANKLT/SThCS3/CS21Levine et al., 1984 [39]
E. coli DH5 NoneNoneVU

used as a positive control for nonclassical virulence factors.
bNMRC refers to Naval Medical Research Center.
cVU refers to Gomez-Duarte’s laboratory collection at Vanderbilt University.
NK refers to not known.