A male patient with symptoms of urethritis. Examination reveals only pus cells without any organism. Which of the following is most likely causative agent?
Chlamydia
trachomatis
Vibrio genus involves many species, only some serotypes of V.cholerae are pathogens of cholera. Which of the following causative agents of cholera?
V.cholerae serogroups non O1 and non O139
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