|
|
| (17 intermediate revisions by 4 users not shown) |
| Line 1: |
Line 1: |
| − | <big><center>[[Infectious agents and parasites|'''BACK TO INFECTIOUS AGENTS AND PARASITES''']]</center></big>
| + | #REDIRECT[[:Category:Haemophilus species]] |
| − | <big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big>
| |
| − | | |
| − | *''H. parasuis'' in '''Glasser's disease''' of pigs causes [[Peritoneal cavity - inflammatory#Peritonitis|peritonitis]], suppurative [[Bacterial infections#Glasser's disease|bronchopneumonia, pleuritis]], pericarditis, (as part of polyserositis), meningitis, [[Joints - inflammatory#In Pigs|polyarthritis]] (also ''H. suis)
| |
| − | **In pigs 5-16 weeks old
| |
| − | **Acute septicaemia
| |
| − | **Due to transport, environmental stresses, dietary and managemental factors
| |
| − | **Mortality up to 50% insome outbreaks
| |
| − | **Expressed lesion vary between animals - meningitis is most consistent, arthritis in 20% of cases
| |
| − | *''Haemophilus sommus'' in [[Bacterial infections#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]
| |
| − | *''H. pleuropneumonia'' in [[Bacterial infections#Contagious porcine pleuropneumonia|Contagious porcine pleuropneumonia]]
| |
| − | | |
| − | ===''Haemophilus characteristica''===
| |
| − | | |
| − | *Morphologically variable Gram-negative bacilli, ranging from short rods to long filaments
| |
| − | *Oxidase negative
| |
| − | *Depend on beta-nicotinamide adenine dinucleotide (NAD) and/or Haemin 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
| |
| − | *Inhabit mucosal epithelium of respiratory and genital tract
| |
| − | | |
| − | | |
| − | ===''Haemophilus parasuis''===
| |
| − | | |
| − | *Serotype B causes Glasser's disease in pigs
| |
| − | *Glasser's disease
| |
| − | **Causes a polyserositis - pericarditis, peritonitis, pleurisy and meningitis - in pigs 3-10 weeks old
| |
| − | **Sporadic outbreaks in the UK
| |
| − | **Can be fatal in 2-5 days
| |
| − | **Chronic arthritis, meningitis and intestinal obstruction due to adhesions in surviving pigs
| |
| − | *Fibrinous pneumonia secondary to enzootic pneumonia or virus infection
| |
| − | | |
| − | | |
| − | ===''Haemophilus somnus''===
| |
| − | | |
| − | *Causes infectious thromboencephalitis 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
| |
| − | | |
| − | | |
| − | ===''Haemophilus paragalinarum''===
| |
| − | | |
| − | *Conjunctivitis in poultry
| |
| − | | |
| − | | |
| − | ===''Haemophilus influenzae''===
| |
| − | | |
| − | *Human respiratory disease
| |