Difference between revisions of "Haemophilus species"
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*''Haemophilus sommus'' in [[Bacterial infections#Enzootic pneumonia of calves|Enzootic pneumonia of calves]] | *''Haemophilus sommus'' in [[Bacterial infections#Enzootic pneumonia of calves|Enzootic pneumonia of calves]] | ||
*''H. pleuropneumonia'' in [[Bacterial infections#Contagious porcine pleuropneumonia|Contagious porcine pleuropneumonia]] | *''H. pleuropneumonia'' in [[Bacterial infections#Contagious porcine pleuropneumonia|Contagious porcine pleuropneumonia]] | ||
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| + | ===''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 | ||
Revision as of 14:47, 17 December 2007
- H. parasuis in Glasser's disease of pigs causes peritonitis, suppurative bronchopneumonia, pleuritis, pericarditis, (as part of polyserositis), meningitis, 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 Enzootic pneumonia of calves
- H. pleuropneumonia in 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