Chapter 12: [Gram-Negative Bacteria] Chlamydia, Rickettsia, and Friends

Question 1

Cat-scratch fever is caused by what organism?

Answer 1

• Bartonella henselae*
  (p. 116)

Question 2

What symptoms are seen in cat-scratch disease?

Answer 2

Lymph node enlargement, low-grade fever, and malaise.

(p. 116)

Question 3

Both Bartonella quintana and Bartonella henselae can cause bacteremia, ____________, and a syndrome called _________ _____________, which involves proliferation of small blood vessels in the skin and organs of AIDS patients.

Answer 3

endocarditis

bacillary angiomatosis

(p. 116)

Question 4

What antibiotics are used to treat cat scratch fever?

Answer 4

azithromycin or doxycycline

Question 5

What is the only rickettsial disease without a skin rash?

Answer 5

Q fever (caused by Coxiella bumetii)

(p. 123)

Question 6

What is the reservoir for Coxiella bumetii?

Answer 6

cattle, sheep, & goats

(p. 122)

Question 7

How is Coxiella bumetii transmitted?

Answer 7

Direct airborne transmission of endospore from cow hide or dried placenta, or via consumption of endospore – contaminated unpasteurized cow milk.

(p. 123)

Question 8

What is the treatment for infections caused by Coxiella bumetii?

Answer 8

Doxycycline, erythromycin, and pasteurize all milk to 60° C.

(p. 123)