Quellung phenomenon is seen in:
Correct Answer: Pneumococcus
Description: Ans. is 'a' i.e., Pneumococcus (Ref: Ananthanarayan, 8th/e, p. 220, 9th/e, p. 223)* A positive reaction shows clumping because of cross-linking of the antibodies and pneumococci. The halo effect around the pneumococci is apparent capsular swelling. A negative control would show no clumping or capsular swelling.
Category:
Microbiology
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