Table 2: Distribution of LT and ST enterotoxins and colonization surface antigens among Colombian ETEC clinical isolates.

Toxin gene typeTotal number of isolatesaCF type (s) producedNumber (%) of isolates

LT21CS21 + CFA/I1 (4.7)
CS21 + CS63 (14.2)
CS21 + CS121 (4.7)
CS21 + CS71 (4.7)
CS21 + CS2 + CS31 (4.7)
CS11 (4.7)
CS71 (4.7)
CS192 (9.5)
CS61 (4.7)
CF undetectedb9 (42.8)

LT-ST6CS211 (16.6)
CS5 + CS64 (66.6)
CS51 (16.6)

ST13CS21 + CFA/I12 (92.3)
CF undetectedb1 (8.3)

isolates positive for any enterotoxin and positive or negative for any CSs.
bCSs undetected by PCR reaction.