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==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 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.

It is a systemic condition affecting 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.

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 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 disease occurs '''worldwide''', it is endemic in most herds but incidence of clinical disease in the UK is sporadic.Increased prevelance hgas been associated with PRRS, Circovirus and Swine Influenza.  

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