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This photomicrograph of a Gram-stained urethral discharge specimen, revealed some of the histopathology associated with a case of gonorrhea, which was confirmed as culture-positive, even though very few extracellular diplococci were observed. Gonorrhea is caused by the Gram-negative bacterium, Neisseria gonorrhoeae.

Photo by: U.S. CDC/Joe Miller |  VIRIN: 750101-A-A1902-0001.JPG