Changes

==Description==

==Description==

'''Glasser's disease''' is caused by the bacteria ''[[Haemophilus parasuis]]''.  

'''Glasser's disease''' is caused by the bacteria ''[[Haemophilus parasuis]]''.  

It is a systemic condition affecting young pigs characterised by polyserositis, arthritis and meningitis. It is rapidly fatal in the acute form, in some cases animals die before the development of lesions. In older pigs respiratory signs are most common usch as bronchitis, other symdromes may also occur.  

It is a systemic condition affecting young pigs characterised by polyserositis, arthritis and meningitis. It is rapidly fatal in the acute form, in some cases animals die before the development of obvious lesions. In older pigs respiratory signs are most common such as bronchitis, other symdromes may also occur.  

==Signalment==

==Signalment==

The disease usually affects weanlings '''6-10 weeks old''' when maternal antibodies wane but it can affect pigs of any age, particularly naive pigs introduced into a herd or through exposure to a strain to which there is little immunity. The stress of mixing, weaning and adverse environmental conditions are predisposing factors.

The disease usually affects weanlings '''6-10 weeks old''' when maternal antibodies wane but it can affect pigs of any age, particularly naive pigs introduced into a herd or through exposure to a strain to which there is little immunity. The stress of mixing, weaning and adverse environmental conditions are predisposing factors.

The disease occurs '''worldwide''', it is endemic in most herds but incidence of clinical disease in the UK is sporadic due to widespread acquired resistance. Increased prevelance hgas been associated with [[Porcine Reproductive and Respiratory Syndrome|PRRS]], [[Porcine Circoviruses|Circovirus]] and [[Swine Influenza|Swine Influenza.]]  

The disease occurs '''worldwide''', it is endemic in most herds but incidence of clinical disease in the UK is sporadic due to widespread acquired resistance. Increased prevelance has been associated with [[Porcine Reproductive and Respiratory Syndrome|PRRS]], [[Porcine Circoviruses|Circovirus]] and [[Swine Influenza|Swine Influenza.]]  

Mortality is high when there is no immunity, for example outbreaks in specific pathogen-free herds.   

Mortality is high where there is no immunity, for example outbreaks in specific pathogen-free herds.   

==Diagnosis==   

==Diagnosis==   

*Cough  

*Cough  

*Swollen joints and arthritis

*Swollen joints and arthritis

*CNS signs, Trembling and paddling  

*CNS signs, trembling and paddling  

*Sudden death

*Sudden death