title: Streptococcus dysgalactiae cellulitis and toxic shock like syndrome in a Brown Swiss cow.
abstract: An adult Brown Swiss cow was presented to the Large Animal Hospital of the Centre Hospitalier Universitaire Vétérinaire de l'Université de Montréal due to a postpartum downer cow syndrome. The animal had severe and generalized swelling of all 4 limbs and was in shock, as demonstrated by hypotension, dehydration, hypothermia, altered mental status, and abnormal blood parameters. It died rapidly, and necropsy revealed a generalized, severe cellulitis caused by Streptococcus dysgalactiae subsp. dysgalactiae, bronchopneumonia, and lesions of disseminated intravascular coagulation (DIC) in the kidneys. The portal of entry of the bacteria in the subcutaneous tissue was not found, as there was no history of skin trauma or mastitis. The pure growth of large quantities of an invasive Streptococcus species, associated with hypotension, coagulopathy, and renal failure, are supportive of streptococcal toxic shock-like syndrome in a bovine.
authors.affiliation: Laboratoire d'Epidémiosurveillance Animale du Québec (LEAQ), Institut National de Santé Animale (INSA), Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec (MAPAQ), Québec J2S 7X9, Canada. sonia.chenier@umontreal.ca
authors.forename: Sonia
authors.initials: S
authors.lastname: Chénier
authors.forename: Mathilde
authors.initials: M
authors.lastname: Leclère
authors.forename: Serge
authors.initials: S
authors.lastname: Messier
authors.forename: Gilles
authors.initials: G
authors.lastname: Fecteau
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology*; D002481:Cellulitis / Q000382:microbiology / Q000662:veterinary*; D017809:Fatal Outcome; D005260:Female; D006651:Histocytochemistry / Q000662:veterinary; D012772:Shock, Septic / Q000382:microbiology / Q000662:veterinary*; D013290:Streptococcal Infections / Q000382:microbiology / Q000662:veterinary*; D013292:Streptococcus agalactiae / Q000254:growth & development*