The specific serotype of a microorganism can be determined by mixing samples of the microorganism with different samples of antibodies. If a mixture of the microorganism and antiserum cause clumps to form, the serotype can be identified.

Why is serotyping particularly important in Salmonella infections and typhoid fever?

Why is serotyping particularly important in Salmonella infections and Typhoid fever? Salmonella enterica serotype Enteritidis causes mild self-limiting disease but Salmonella enterica serotype Typhimurium requires treatment. The serotype determines the disease caused and the treatment needed (if any).

How serotype results can be used in public health practice?

Serotype information can also be used to compare human isolates with animal and food isolates identified through other surveillance systems. The resulting information is useful in assessing the scope of a problem, investigating its source, and planning and evaluating interventions.