Serogroup/serotype of the organism e.g. 110, 122, 123, etc.
Weak reactions are denoted by a w
Serogroup 2
Serogroup 3
Groupings based on whole-cell Fatty Acid Methyl Esters analysis.
Groupings based on Restriction Fragment Length Polymorphisms of the Internal Transcribed Spacer region
located between the 16S and 23S ribosomal genes.