*In foals purulent peritonitis may be caused by [[Rhodococcus equi|''Rhodococcus equi'']] or fibrinous peritonitis by ''[[Actinobacillus equuli]]'' | *In foals purulent peritonitis may be caused by [[Rhodococcus equi|''Rhodococcus equi'']] or fibrinous peritonitis by ''[[Actinobacillus equuli]]'' |