A stage of venereal syphilis characterized by the appearance of a chancre is known as __________ syphilis
a. primary
b. secondary
c. late
d. tertiary
A
T. pallidum causes venereal (i.e., transmitted through sexual contact) syphilis. The clinical pres-entation of venereal syphilis is varied and complex, often mimicking many other diseases. This disease is divided into stages: incubating, primary, secondary, early latent, latent, and tertiary. Primary syphilis is characterized by the appearance of a chancre (a painless ulcer) usually at the site of inoculation, most commonly the genitalia. Within 3 to 6 weeks, the chancre heals. Disse-mination of the organism occurs during this primary stage.
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