The sérogroupage (in the past, sérotypage or sérotypie ) is an immunological technique consisting with the setting of obviousness of structural Antigène S Bactérie viral NS or allowing the diagnosis Sérovar S (or sérogroupes , or sérotypes ).

This technique allows inter alia the diagnosis of the following bacteria:

• Escherichia coli ;
• Listeria ;
• Neisseria ;
• Salmonella ;
• Streptococcus and Enterococcus ;
• Vibrio .

• FMDV, the virus of the Foot-and-mouth disease;
• HIV, the virus of the human immunodéficience.