(ECA), universal to all Enterobacterales.

E. coli

E. coli have 187 possible O antigens (6 later removed from list, 3 actually producing no LPS), 53 H antigens, and at least 72 K antigens. Among these three, the O antigen has the best correlation with lineages; as a result, the O antigen is used to define the "serogroup" and is also used to define strains in taxonomy and epidemiology.

Shigella

Shigella are only classified by their O antigen, as they are non-motile and

1.Previous
3.Next