Chapter 8: [Gram-Negative Bacteria] Neisseria

Question 1

The greater family of Neisseriaceae (nī-sir-ē-ˈā-sē-ˌē) is composed of 5 genera:

Answer 1

• Neisseria*
• Moraxella* (subgenera Branhamella)
• Kingella*
• Acinetobacter*
• Oligella*

Question 2

What two major diseases does Moraxella (Branhamella) catarrhalis cause?

Answer 2

otitis media

respiratory infections in elderly/ patients with COPD

(Keep in mind, respiratory infections also include sinusitis, bronchitis, as well as the obvious pneumonia)

(p. 69)

Question 3

COPD exacerbations are often associated with an acquisition of a new strain of nontypeable Haemophilus influenzae or infection with Moraxella catarrhalis (__% of cases). Moraxella catarrhalis also causes pneumonia in the elderly.

Answer 3

30%

(p. 69)

Question 4

What are the treatment options for infection with Moraxella catarrhalis?

Answer 4

1. azithromycin or clarithromycin
2. amoxicillin with clavulanate (Augmentin)
3. oral second or third generation cephalosporin
4. trimethoprim/ sulfamethoxazole (Bactrim)
   (p. 71)

Question 5

Moraxella catarrhalis is resistant to…

Answer 5

….penicillin

(p. 71)