Changes

**Caused by [[Erysipelothrix rhusiopathiae|''Erysipelothrix rhusiopathiae'']]

**Caused by [[Erysipelothrix rhusiopathiae|''Erysipelothrix rhusiopathiae'']]

**Vasculitis, thrombosis, ischaemia -> cutaneous lesions - firm, raises, rhomboidal pink to dark purple areas

**Vasculitis, thrombosis, ischaemia -> cutaneous lesions - firm, raises, rhomboidal pink to dark purple areas

*[[Clostridium species#Clostridium novyi|''Clostridium novyi'']]

*[[Clostridium novyi|''Clostridium novyi'']]

**Severe cellulitis, toxaemia and death of young rams during breeding season (due to traumatised heads) - 'big head'

**Severe cellulitis, toxaemia and death of young rams during breeding season (due to traumatised heads) - 'big head'

*[[Streptococci|''Streptococcus equi'']]

*[[Streptococci|''Streptococcus equi'']]

**In horses

**In horses

**Immune complex vasculitis -> [[Haemorrhage - Pathology#Purpura haemorrhagica|purpura]]

**Immune complex vasculitis -> [[Haemorrhage - Pathology#Purpura haemorrhagica|purpura]]