Changes

==Signalment==  

==Signalment==  

Grass sickness has been reported in Northwestern Europe and South America with the highest incidence in the UK, in some parts of Eastern Scotland 1% of horses die annualy from the disease.  

Grass sickness cases are restricted to Northwestern Europe and South America with the highest incidence in the UK, in some parts of Eastern Scotland 1% of horses die annualy from the disease.  

The disease usually occurs in spring or summer in horses at pasture, those that have moved pasture recently are also at greater risk.  

The disease occurs in warm wet weather with peak incidences in spring and autumn. Affected horses are usually at pasture, those that have moved pasture within the preceeding two months are also at greater risk.  

Young animals 2-7 years old are predisposed.

Young animals, 2-7 years old are predisposed.

==Diagnosis==

==Diagnosis==