Difference between revisions of "Category:Haemophilus species"

Revision as of 09:58, 14 May 2010

Inhabit mucosal epithelium of upper respiratory and lower genital tract
Suppurative infections due to release of pro-inflammatory cytokines released from macrophages
Serofibrinous to fibrinopurative infections of lungs, body cavities and joints
Colonisation of meningeal vessels causes a thrombotic vasculitis leading to encephalitis and meningitis

Morphologically variable Gram-negative bacilli, ranging from short rods to long filaments
Facultative anaerobes
Typically oxidase positive
Depend on beta-nicotinamide adenine dinucleotide (NAD) (V factor) and/or Haemin (X fector) for growth
Heated blood agar (Chocolate Agar) required for growth of NAD-dependent strains
Haemin-dependent strains grow on Blood Agar
Do not grow on MacConkey agar

Human meningitis, septicaemia, bronchopneumonia, conjunctivitis, epiglottitis, and otitis

The following 9 pages are in this category, out of 9 total.

@@ Line 24: / Line 24: @@
-===''Haemophilus somnus''===
+===''[[Haemophilus somnus]]''===
-*Cattle
-**''Haemophilus sommus'' in [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]
-**Septicaemia
-**Causes infectious thromboencephalitis, bronchopneumonia and sporadic reproductive tract infections in cattle 1-3 years old
-**Found in the USA and Europe, including UK
-**Causes a meningoencephalitis with fibrinous arterial thrombosis and necrosis
-**Causes fever, staggering and dyspnoea, progressing to somnolence, paralysis and death
-**Mortality can be high
-*Sheep
-**Epididymitis in young rams
-**Vulvitis, mastitis and reduced reproductive performance in ewes
-**Septicaemia, arthritis, meningitis and pneumonia in lambs