Which of the following outpatients are at a greater risk for developing Treponema pallidum, the cause of syphilis? Select all that apply
A) A homeless adolescent female performing oral sex for money
B) A male who frequents clubs catering to exotic dancers and sexual favors
C) A homosexual male couple who have had a monogamous relationship for the past 20 years
D) An older adult female living in a condominium who regularly has sex with three to four different men/week
Ans: A, B, D
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Treponema pallidum is a sexually transmitted infection that is spread by direct physical contact. The Borrelia type of spirochete is spread from animals to humans through lice or tick bites. Leptospira spirochetes spread from animals to humans through contact with infected animal urine. Spirochetes are anaerobic; therefore, they would not invade the host through oxygen-filled aerobic lungs.
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