Haemophilus Flashcards
1
Q
Haemophilus are normal flora of
A
respiratory
2
Q
Haemophilus optimal growth
A
35-37C, 5% CO2
3
Q
Haemophilus Gram stain
A
Gram Negative coccobacilli, pleomorphic
4
Q
H. influenzae Type B is surrounded by
A
polysaccharide capsule
4
Q
H. influenzae Type B is covered by
A
antiphagocytic polysaccharide capsule
5
Q
H. influenzae Type B is spread through
A
respiratory droplets
6
Q
H. influenzae causes which diseases?
A
- Pneumonia
- Cellulitis
- Sepsis
- Meningitis
7
Q
H. influenzae Type B virulence factors
A
- Capsule
- IgA protease
- Lipid A
- Pili
8
Q
H. ducreyi disease
A
chancroid STI
9
Q
H. ducreyi Gram stain morph
A
GNR school of fish/railroad tracks
10
Q
H. ducreyi isolation
A
- CHOC w/ vancomycin and growth factors
- 33C 7-10 days
- CO2, high humidity
11
Q
H. aegyptius infections
A
purulent conjunctivitis
Brazilian Purpuric Fever
12
Q
Haemophilus ID tests
A
- Latex Agg
- Hemolysis
- X & V factor
- porphyrin test
13
Q
X Factor
A
Hemin, heat stable
14
Q
V Factor
A
Nicotinamide Adenine Dinucleotide (NAD), heat labile
