title: Haemophilus somnus Mastitis in a Dairy Cow.
abstract: A clinical case of peracute bovine mastitis is described in which the most severely affected quarter yielded a heavy growth of Haemophilus somnus on culture.
authors.forename: K R
authors.initials: KR
authors.lastname: Armstrong
authors.forename: A D
authors.initials: AD
authors.lastname: Osborne
authors.forename: E D
authors.initials: ED
authors.lastname: Janzen