Question
A 26 year old male presents to a STD clinic with a single painless ulcer on external genitalia. The choice of laboratory test to look for the etiological agent would be ?
A. | Scrapping from ulcer for culture on chocolate agar |
B. | Scrapping from ulcer for dark field microscopy |
C. |
Serology for detection of specific IgM antibodies |
D. |
Scrapping from ulcer for Tissue culture |
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