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Mastitis caused by Bacillus anthracis in a beef cow
Ross Hawkes1, Eldon Pederson, Musangu Ngeleka
1Mohawk Animal Clinic, Box 1508, Melfort, Saskatchewan S0E 1A0.
The Canadian Veterinary Journal = La Revue Veterinaire Canadienne
|December 2, 2008
Summary
A beef cow showed mammary gland swelling and depression. Diagnosis confirmed Bacillus anthracis infection through milk sample analysis, indicating a rare case of bovine anthrax.
Area of Science:
- Veterinary Medicine
- Microbiology
- Infectious Diseases
Background:
- Bovine anthrax is a rare but severe bacterial disease caused by Bacillus anthracis.
- Anthrax typically affects livestock, including cattle, and can be fatal.
- Clinical presentation can vary, but mammary involvement is uncommon.
Observation:
- A mixed-breed beef cow presented with unilateral mammary gland swelling affecting both the front and hind left quarters.
- The affected animal also exhibited mild depression.
- Serosanguinous-like milk was observed in the affected quarters.
Findings:
- Microscopic examination and microbial culture of milk samples were performed.
- Results were consistent with the presence of Bacillus anthracis.
- This confirmed a diagnosis of bovine anthrax.
Implications:
- This case highlights the importance of considering Bacillus anthracis in differential diagnoses for bovine mastitis, even with atypical presentations.
- Early detection and diagnosis are crucial for managing anthrax outbreaks in cattle herds.
- Understanding the varied clinical manifestations of anthrax is vital for veterinary practitioners.
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