Chapter Six

CHAPTER SIX

1. Answer: b. Trichomoniasis is caused by a single-celled protozoan called

Trichomonas vaginalis. It can be passed through sexual activity. 2. Answer: a. Pediculosis pubis or pubic lice is a parasitic disease passed through sexual behavior; the other disorders are viral in nature. 3. Answer: d. About half of all exposed infants will get conjunctivitis from an exposure to chlamydia. A lesser percentage can develop pneumonia. 4. Answer: b. If a person says they have the clap, they are referring to the fact that they have gonorrhea. 5. Answer: c. Each of these can be a complication of having chronic hepatitis B, except for gallbladder cancer, which is not a complication of this STD. 6. Answer: d. HIV cannot be transmitted through casual contact, hugging or kissing, unless broken skin is involved. 7. Answer: c. HIV does not infect the B cells but instead infect T helper cells and cells that phagocytize other cells, like macrophages, dendritic cells, and microglial cells. 8. Answer: c. If a person is still has not tested positive for HIV after six months, they have not contracted the disease. 9. Answer: c. Each of these is caused by HPV infections except for esophageal cancer. Almost all cervical cancers are believed to be caused by the HPV virus. 10. Answer: a. HPV can be transmitted through each of these routes but it cannot be passed through contact with a toilet seat.