Haemophilus Influenzae Flashcards
1
Q
Type of organism
A
Gram negative cocci, oxidase and catalase positive, needs X and V factors
2
Q
Two types
A
Non Typable- non invasive
Typable - invasive
3
Q
Non Typable infections
A
Pneumonia, otitis media, sinusitis
4
Q
HiB infections
A
Meningitis, Epiglottis, BSI
5
Q
Virulence Type B
A
Polyribosyl ribitol phosphate capsule
Fimbrae
IgA Protease
LOS
6
Q
Virulence Non Typable
A
No PRP capsule
7
Q
Isolation
A
Chocolate agar 5-10% CO2, 24-48hrs, contains Haematin and NAD (X and V)
8
Q
Confirmatory
A
Send to Irish meningoccal and meningitis reference laboratory
9
Q
Transmission
A
Mostly children can carry haemophilus and some adults. They mostly carry Non typable in the nasopharynx. Sometimes they can carry Hib. Transmission through aersols etc
