TABLE 3.

Screening of ETEC isolates for the etpBAC locus and secretion of EtpA

StrainCFA (CS)Toxin(s)SerotypeDNA probeEtpA secretionOrigina
etpAetpBetpC
M415C1ISTbO2:nmca
M633C1ILT/STO78:H11a
M109C2IRough:H12++++a
DS244-1IO6:H16++++a
15758aIO78:H10++++a
TX1ISTO78:H12++++a
DS 229-1ILT/STO128:H12++++a
H410C1IRough:nma
H10407ILT/STO78:H11++++a
DS67-1ISTO153:nm+b
DS97-2ISTO153:nmb
DS229-1ILT/STO128:H12+b
DS321-1ILT/STO128:H12+b
ETEC-10ISTO153:H45b
ETEC-13ISTO153:H45b
ETEC-15IO153:H45b
H10407ILT/STO78:H11+b
DS220-4II (CS2, CS3)O11:H33+a
DS373-2II (CS2, CS3)O18:nm++++a
DS89-1II (CS3)LT/STO6:H16b
DS61-1II (CS2, CS3)LT/STO6:H16+b
M424C1II (CS1, CS3)LT/STO6:H16+b
DS15-1II (CS2, CS3)LT/STO6:H16b
DS18-1II (CS1, CS3)LT/STO6:H16+b
DS96-1II (CS2, CS3)LT/STO6:H16+b
DS124-1II (CS1, CS3)LT/STO6:H16+b
DS180-1II (CS3)LT/STO6:H16+b
DS198-1II (CS3)LT/STO6:H16+b
E9199II (CS1, CS3)LT/STO6:H16b
E5470II (CS2, CS3)LT/STO6:H16+b
DS303-2II (CS1, CS3)LT/STO6:H16+b
ETEC-23IILT/STO6:H16b
ETEC-26IIO6:H16b
ETEC-43IILT/STO6:H16b
DS7-3II (CS3)LT/STO8:H9b
DS300-1IV (CS4, CS6)O8:nm+a
B4106-1IV (CS6)STO27:H7a
B7AIV (CS6)LT/STO148:H28+a
E11881EIV (CS4, CS6)O25:H42b
PE423IV (CS5)STO115:H40b
E17018A(CS5, CS6)LT?/STO167:H5b
E10703(CS5, CS6)STO167:H5b
B7AIV (CS6)LT/STO148:H28b
E11881/9IV (CS4, CS6)LTO25:H42b
E34420ACFAIII (CS8)LT/STO167:nmb
E2539-C1NDdLTO25:nma
10614CNDO78:nma
ScottNDO78:K80+a
EDL903NDLTO88:H25a
ThroopDeNDLTO63:nm++++
E7476A(CS14)STO166:H27+b
E20738A(CS17)LTO114:H25+b
DS37-4(CS17)LTO114:H21+b
Z16-4(CS17)LTO8:H29b
  • a Only the original collection of strains from WRAIR (a) was tested in the DNA hybrization studies. b, Berna Biotech.

  • b ST, heat-stable enterotoxin; LT, heat-labile enterotoxin.

  • c −, negative; +, positive.

  • d ND, not determined.

  • e See reference 30.