A patient presents with urethral discharge. Gram stain shows intracellular gram-negative diplococci. What is the causative organism?
AMycoplasma genitalium
BTreponema pallidum
CChlamydia trachomatis
DNeisseria gonorrhoeae
A sex worker presents with purulent urethral discharge and gram-negative diplococci in culture. What is the most likely diagnosis?
ATreponema pallidum
BHaemophilus ducreyi
CChlamydia trachomatis
DNeisseria gonorrhoeae
Increased susceptibility to N. meningitidis infections is associated with deficiency of which complement component:
AC1-C4 deficiency
BC3 deficiency
CC5-C9 deficiency
DC2 deficiency
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