1. Why are certain microscopes used instead of staining to see treponema, leptospira and borrelia spirochetes?
They don't stain well.

2. What is the major side effect of cholera that can lead to death?
a. fever
*b. dehydration
c. heart arrhythmia
d. stroke

3. What was the cause of the London cholera outbreak?
a. unsanitary bathing conditions
b. improper disposal of the dead
*c. intake of contaminated water from a streetpump
d. eating undercooked meat

4. Which blood type is at higher risk for ulcers?
a. A+
b. B-
*c. O
d. B+

5. Which of the following is the common cause of food poisoning?
*a. Campylobacter jejuni
b. Vibrio cholera
c. Borrelia burgdorferi
d. Leptospira biflexa

6. Humans are the only natural host for this bacteria and is mainly spread through sexual contact.
a. Rickettsia prowazekii
b. Chlamydia trachomatis
c. Leptospira
*d. Treponema pallidum

7. A man was admitted into a hospital while vacationing in Brazil. He had a temperatue of 103 C, chills, headache, muscle aches, and conjuctivitis. On testing, they found this pathogen in his blood and cerebrospinal fluid.
a. Treptonema pallidum
*b. Leptospira
c. Rickettsia prowazekii
d. Chlamydia trachomatis

8. A gumma is:
a. the primary lesion of syphilis
*b. a syphilitic tumor
c. the result of congenital syphilis
d. a damaged aorta

9. The treatment choice for syphilis is:
a. tetracycline
b. antiserum
*c. penicillin
d. sulfa drugs

10. Lyme disease is caused by _______ and spread by ______.
a. Borrelia recurrentis, lice
b. Borrelia burgdorferi, fleas
c. Borrelia hermsii, ticks
*d. Borrelia burgdorferi, ticks

11. Relapsing fever is spread by:
a. lice
b. ticks
c. animal urine
*d. a and b

12. The best therapy for cholera is:
a. oral tetracycline
*b. oral rehydration therapy
c. antiserum injection
d. oral vaccine

13. Rickettsias and chlamydias are similar in being
a. free of a cell wall
b. the cause of eye infections
c. carried by arthropod vectors
*d. obligate intracellular bacteria

14. Which of the following is not an arthropod vector of rickettsioses?
*a. mosquito
b. louse
c. tick
d. flea

15. Chlamydiosis caused by C. trachomatis attacks which structure?
a. eye
b. urethra
c. fallopian tubes
*d. all of these

16. A breath test is given to people who may have H. pylori. Urea is swallowed and on exhalation, what is given off if H. prlori is present?
a. radioactive O2
*b. radioactive CO2
c. ammonium
d. urine

17. How are R. rickettsii and Lyme disease alike?
*a. both are transmitted by ticks
b. both are more common on the western seaboard
c. both have a rash that occurs only on the chest
d. none of the above

18. Ship or Prison fever is another name for...
a. Chlamydia
b. Rocky Mountain spotted fever
*c. Rickettsia typhi
d. Rickettsia prowazekii

19. Which of the following causes blindness in babies?
a. Campylobacter jejuni
b. Helicobacter pylori
c. Rickettsia prowazekii
*d. Chlamydia trachomatis

20. Which of the following has no cell wall or shape?
*a. Mycoplasma
b. Chlamydia
c. Rickettsia
d. Campylobacter jejuni

21. Treponema pallidum is cultured in/on
a. blood agar
*b. animal tissues
c. serum broth
d. eggs

22. Which of the following conditions may occur in untreated lyme disease?
a. arthritis
b. rash
c. heart disorder
d. a and b
*e. all of these

23. Mycoplasmas attack the ------------- of host cells
a. nucleus
b. cell walls
c. ribosomes
*d. cell membranes