Table 5 Complex mixtures of E. coli strains with more than one O-antigen strain per sample
# of different O-antigens in a given sample | ||||||||
|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | None | |
# of pathogenic samples | 100 | 87 | 54 | 34 | 9 | 2 | 0 | 52 |
% in pathogenic samples (n = 338) | 29 | 26 | 16 | 10 | 3 | 2 | 0 | 15 |
% of O157+ pathogenic samples (n = 158) | 20 | 27 | 27 | 20 | 6 | 1 | 0 | 0 |