A 32-year-old male presents with a history of dysuria,
discharge per urethra and discomfort in the penis. He gives a history of
unprotected sexual intercourse with a casual partner 4 days prior to the
development of symptoms.
An urethral swab is examined and on gram stain this shows
numerous polymorphs with many intracellular gram-negative diplococci.
The causative organism is: