Microbiology Bacteria 5f627e2f Quellung's reaction is seen in all except: A Strep pneumoniae B Neisseria gonorrhoeae C Hemophilus influenza D Neisseria meningitides High-Yield Explanation Ans. D. Neisseria meningitidesQuellung reaction is capsular swelling seen in capsulated bacteria. N. gonorrhoeae is not capsulated.