- 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