Serotyping of the pneumococcus based on capsular polysaccharide is performed in:
A)Ouchterlony double diffusion.
B)Western blot.
C)immunelectrophoresis.
D)radioimmunoassay (RIA).
E)the Quellung test.

Question

Quizplus · Accepted Answer

The Quellung test is the most commonly used technique for serotyping the pneumococcus based on its capsular polysaccharide. This technique involves the use of specific antisera to identify the type-specific capsule of the pneumococcus by observing the change in the appearance of the capsule under a microscope. The other methods listed are not commonly used for pneumococcal serotyping.

Serotyping of the Pneumococcus Based on Capsular Polysaccharide Is Performed