Bacterium
mannheimia haemolytica
Subclass of:
Mannheimia
Definitions related to mannheimia haemolytica:
  • A species of facultatively anaerobic, Gram negative, rod shaped bacteria in the phylum Fusobacteria. This species is nonmotile, beta hemolytic, and ferments D sorbitol, D xylose and maltose, but not trehalose. M. haemolytica is a commensal organism of the upper respiratory tract of ruminants but may become pathogenic, causing pneumonia.
    NCI
    U.S. National Cancer Institute, 2021
  • A species of gram-negative, facultatively anaerobic, rod-shaped bacteria normally commensal in the flora of CATTLE and SHEEP. But under conditions of physical or PHYSIOLOGICAL STRESS, it can cause MASTITIS in sheep and SHIPPING FEVER or ENZOOTIC CALF PNEUMONIA in cattle. Its former name was Pasteurella haemolytica.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Any bacterial organism that can be assigned to the species Mannheimia haemolytica.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
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