The clinical signs of EVA infection vary from no signs at all to severe disease.
Vaccinations stimulate the horse's own immune system to produce antibodies to fight infections.
Tetanus is a disease affecting all animals and is caused by a bacteria called Clostridium tetani. This bacteria can only be active in dead tissue, or tissue that has no or very little oxygen.
Tied up horses have pain and stiffness in muscles of the back, rump, and upper hind leg region. The problem can vary from mild short-lasting cramps to very serious muscle damage where urine turns dark coloured.
Strangles is an acute, very contagious bacterial respiratory disease, mainly affecting young horses from 2 months to 5 years of age. The bacteria causing this disease is called Streptococcus equi.