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. 2004 Mar;42(3):1099–1108. doi: 10.1128/JCM.42.3.1099-1108.2004

TABLE 2.

Intimin-negative STEC strains

Serotypea Toxin type(s)b No. of strains (n = 253)
O1:H7 1 1
O1:H20 1 2
O2:H27 2 1
O4:H10 1c+2c 1
O6:H12c 1c 1
O11:H48c 1 1
O15:H8 2c 3
O22:H8d 1c+2c, 1c, 2, 2c 4
O27:H30 2c 1
O28:H25 2 1
O50:[H8]c 1c+2c 1
O54:H25c 1c+2c 1
O55:H9c 1 1
O60:[H4]c 2e 1
O68:H18c 2c 1
O71:[H12] 1c+2c 1
O73:H18c 2 1
O76:[H19]d 1c, 1c+2c 15
O77:H18 1+2 1
O79:H14c 1c 1
O88:H8c,d 1, 2c 2
O88:H25c,d 1, 2 2
O91:H10 1+2 1
O91:[H14]d 1, 1+2c 37
O91:[H21]d 1+2d, 2d, 1+2e 6
O104:[H21] 1+2 2
O105:H18 1+2 3
O113:[H4]d 1c, 2c 17
O113:[H21]d 1+2d, 2+2d, 2d 3
O114:H4 1 1
O115:H10 1 3
O115:[H44] 2c 1
O116:[H21] 2 1
O117:H7 2 1
O118:H12 2c 1
O125:[H19]c 1c+2c 1
O125:H10c 1c 1
O128:H2d 1c+2c, 2c 23
O132:[H19]c 1c 1
O146:H21d 1c, 2c, 1c+2c 15
O146:H28 2c 7
O148:H8c 2d 1
O153:H25 2 1
O154:[H31]c 1 1
O156:H21c 1+2c 1
O163:[H19]d 1, 2+2d 3
O166:H28d 1c, 1c+2c 4
O174:H2 1+2 2
O174:H16c 2c 1
O174:H21 2d 2
O178:H7 1 1
O179:H8c 2 1
O181:H16c 1c+2c 1
Ont:H2 1c, 1+2 2
Ont:H10 2e 1
Ont:[H19] 2c+2e 2
Ont:[H21] 2c+2d 1
Ont:[H28] 1+2 1
Ont:H31 1 1
Orough:[H2]d 1+2c, 1c+2c, 1, 2c 13
Orough:[H4]d 1, 1c+2c 2
Orough:[H7] 1c+2c 1
Orough:H8d 1, 1c, 1c+2c 3
Orough:[H10] 1c+2c 1
Orough:H12 2c 1
Orough:[H14]d 1, 1c, 1+2c, 1c+2c 27
Orough:[H19]d 1c, 2c, 1c+2c 4
Orough:H28d 1c, 2c 3
Orough:[H45] 1 1
Orough:H56 2c 1
a

O:H serotypes of STEC strains. An H type in brackets indicates the presence of NM strains, which were analyzed for their fliC type by PCR as described in Materials and Methods.

b

The toxin types of strains were determined on the basis of their stx genotypes as described above. Toxin types which were present in combination in all strains belonging to a given serotype are added together (for example, 1+2), and toxin types which were found in different combinations in strains belonging to one serotype are listed separately (for example, 1, 2).

c

STEC strain belonging to an O:H type which was not previously described to occur in humans.

d

Serotypes of STEC strains showing differences in their Shiga toxin types as follows: O22:H8, toxin types 1c (n = 1 strain), 1c+2c (n = 1), 2c (n = 1), and 2 (n = 1); O76:[H19], toxin types 1c (n = 5) and 1c+2c (n = 10); O88:H8, toxin types 1 (n = 1) and 2c (n = 1); O88:H25, toxin types 1 (n = 1) and 2 (n = 1); O91:[H14], toxin types 1 (n = 30) and 1+2c (n = 7); O91:[H21], toxin types 2d (n = 4), 1+2d (n = 1), and 1+2e (n = 1); O113:[H4], toxin types 1c (n = 3), 2c (n = 1), and 1c+2c (n = 13); O113:[H21], toxin types 1+2d (n = 1), 2d (n = 1), and 2+2d (n = 1); O128:H2, toxin types 1c+2c (n = 21) and 2c (n = 2); O146:H21, toxin types 1c+2c (n = 10), 2c (n = 3), and 1c (n = 2); O163:[H19], toxin types 1 (n = 1) and 2+2d (n = 2); O166:H28, toxin types 1c (n = 1) and 1c+2c (n = 3); Ont:H2, toxin types 1c (n = 1) and 1+2 (n = 1); Orough:H2, toxin types 1 (n = 1), 1c (n = 2), 1+2c (n = 3), 1c+2c (n = 6), and 2c (n = 1); Orough:[H4], toxin types 1 (n = 1) and 1c+2c (n = 1); Orough:H8, toxin types 1 (n = 1), 1c (n = 1), and 1c+2c (n = 1); Orough:[H14], toxin type 1 (n = 11), 1c (n = 2), 1+2c (n = 10), and 1c+2c (n = 4); Orough:[H19], toxin types 1c (n = 2) and 1c+2c (n = 2); and Orough:H28, toxin types 1c (n = 1) and 2c (n = 2).