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Table 1 Main biochemical characteristics of EIEC according to serogroup and phylogroup

From: Uropathogenic Escherichia coli pathogenicity islands and other ExPEC virulence genes may contribute to the genome variability of enteroinvasive E. coli

Serogroup No. of strains Phylogroup Lactose fermentation Motility Lysine decarboxylation Indole production
O28ac 1 B1 + - - -
2 B1 + - - +
O29 5 B1 + - - +
O124 4 A - - - -
2 A - + - +
O136 6 A - - - -
O143 10 E + - - +
O144 5 A + - - +
O152 6 A - - - +
O164 1 B2 + - - +
1 C + - - +
1 B1 - - - +
1 A - - - +
O167 5 E + - - -
1 A + - - +w
  1. wweak reaction