Approximately how many strains of human papillomavirus are sexually transmitted?
a. 50
b. 40
c. 30
d. 20
e. 10
Question 2
A single injection of penicillin will cure individuals who have been infected with ____ for less than a year.
a. chlamydia
b. syphilis
c. trichomoniasis
d. PID
e. HPV