||Bacteria Salmonella enterica
||Topley and Wilson's Microbiology and Microbial Infections, Kingston H.G. Mills and Aoife P. Boyd, Evasion of immune responses by bacteria, p.16 right column 2nd paragraph
||Fierer J, Guiney DG. Diverse virulence traits underlying different clinical outcomes of Salmonella infection. J Clin Invest. 2001 Apr107(7):775-80.PubMed ID11285291
||In S. enterica there are more than 2000 separate
serotypes based on differences in carbohydrate structures,
such as LPS, and also flagella antigens (primary source). Over 4,000 serovars in genus Salmonella according to wiki.