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===''Haemophilus characteristica''===
===''Haemophilus characteristica''===
**Causes a polyserositis - pericarditis, [[Peritoneal cavity - inflammatory#Peritonitis|peritonitis]], pleurisy and meningitis - in pigs 3-10 weeks old
**Causes a polyserositis - pericarditis, [[Peritoneal cavity - inflammatory#Peritonitis|peritonitis]], pleurisy and meningitis - in pigs 3-10 weeks old
**Also causes suppurative [[Bacterial infections#Glasser's disease|bronchopneumonia, pleuritis]], [[Joints - inflammatory#In Pigs|polyarthritis]] (also ''H. suis)
**Also causes suppurative [[Bacterial infections#Glasser's disease|bronchopneumonia, pleuritis]], [[Joints - inflammatory#In Pigs|polyarthritis]] (also ''H. suis)
**Expressed lesions vary between animals - meningitis is most consistent, arthritis in 20% of cases
**Sporadic outbreaks in the UK
**Sporadic outbreaks in the UK
**Can be fatal in 2-5 days
**Can be fatal in 2-5 days
**Mortality up to 50% insome outbreaks
**Mortality up to 50% insome outbreaks
**Chronic arthritis, meningitis and intestinal obstruction due to adhesions in surviving pigs
**Chronic arthritis, meningitis and intestinal obstruction due to adhesions in surviving pigs
*Fibrinous pneumonia secondary to enzootic pneumonia or virus infection
*Fibrinous pneumonia secondary to enzootic pneumonia or virus infection
===''Haemophilus somnus''===
===''Haemophilus somnus''===
*''Haemophilus sommus'' in [[Bacterial infections#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]
*Causes infectious thromboencephalitis in cattle 1-3 years old
*Causes infectious thromboencephalitis in cattle 1-3 years old
*Found in the USA and Europe, including UK
*Found in the USA and Europe, including UK
*Causes fever, staggering and dyspnoea, progressing to somnolence, paralysis and death
*Causes fever, staggering and dyspnoea, progressing to somnolence, paralysis and death
*Mortality can be high
*Mortality can be high
===''Haemophilus pleuopneumonia''===
*''H. pleuropneumonia'' in [[Bacterial infections#Contagious porcine pleuropneumonia|Contagious porcine pleuropneumonia]]