Changes

*Cause meat inspection losses

*Cause meat inspection losses

*''Sarcocystis'' in [[Muscles Inflammatory - Pathology#Protozoa|myositis]]

*''Sarcocystis'' in [[Parasitic Myositis#Protozoa|myositis]]

*Experimental infections cause severe, acute pyrexic disease when the organism multiplies in the vascular endothelium

*Experimental infections cause severe, acute pyrexic disease when the organism multiplies in the vascular endothelium

[[Image:Sarcocyst in muscle.jpg|right|thumb|100px|<small><center>Sarcocyst (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

[[Image:Sarcocyst in muscle.jpg|right|thumb|100px|<small><center>Sarcocyst (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

**Histologically:

**Histologically:

***Merozoites causing focal and segmental [[Muscles Degenerative - Pathology#Necrosis|necrosis]]

***Merozoites causing focal and segmental [[Muscle Necrosis|necrosis]]

***May involve [[Muscles Degenerative - Pathology#Calcification|mineralisation]]

***May involve [[Muscle Calcification|mineralisation]]

***Non-purulent myositis with plasma cells, lymphocytes and macrophages

***Non-purulent myositis with plasma cells, lymphocytes and macrophages

**Diaphragm and masseters most severely affected

**Diaphragm and masseters most severely affected