Lecture 11: Syphilis, Yaws, and Lyme Disease

• cours magistral

Biology 112: The Biology of Infectious Disease Syphilis, Yaws, and Lyme Disease I. Syphilis A. Clinical manifestations 1. Transmission: sexual a) Organism can invade intact mucous membranes b) Sex (oral, genital, or anal) and kissing c) Not terribly contagious: (1 in 10 probability of transmission) 2. Incubation period: 3–4 weeks 3. Primary syphilis a) Chancre (papule progresses to superficial ulcer) (1) Non-tender, firm, clean surface, raised border, firm, reddish b) Satellite buboes in nearby lymph nodes 4.

• j. c. venter
• yaws
• schematic representation of a spirochete
• g. g. sutton
• skin rash
• syphilis
• biology of infectious disease lecture
• a. schucht
• s. garland
• 4 u.s.
• u.s.
• 1 u.s.
• u. s.