Unit 11
Communicable Diseases and Sexually Transmitted Infections

Multiple Choice

Gracie has candidiasis, a vaginal yeast infection. What type of pathogen causes this condition?
1. a bacterium
2. a protozoan
3. a virus
4. a fungus
Scott is diagnosed with gonorrhea, which is caused by which type of pathogen?
1. a virus
2. a bacterium
3. a protozoan
4. a fungus
Oliver has syphilis. Recently he developed white patches in his mouth and on his genitals. His infection has entered the ____ stage.
1. primary
2. secondary
3. tertiary
4. latent
Jimmy has herpes. Which of the following factors will not cause his dormant virus to reactivate and begin blistering?
1. having a fever
2. the stress of taking his final exams
3. a lack of sunlight
4. excessive exercise, especially when his immune system is overworked.
An example of a high-risk behaviour for HIV infection is
1. having unprotected sex with someone you do not know.
2. hugging an HIV-infected person.
3. getting a blood transfusion.
4. using a condom consistently before engaging in foreplay and/or sex.
Match the following terms and definitions:

____ the common cold
1. a virus
2. a bacterium
3. a fungus
4. a protozoan
____ syphilis
1. a virus
2. a bacterium
3. a fungus
4. a protozoan
____ candidiasis
1. a virus
2. a bacterium
3. a fungus
4. a protozoan
____ tuberculosis
1. a virus
2. a bacterium
3. a fungus
4. a protozoan
True/false

In Canada, rates of syphilis have been steadily declining over the past few decades.
1. True
2. False
Viruses are generally treated with antibiotics.
1. True
2. False

Introduction to
Human Health (I)