Study of Mycobacterium bovis Pathogenicity in Cattle and Guinea Pigs
Author Information
Author(s): Virginia Meikle, María V. Bianco, Federico C. Blanco, Andréa Gioffré, Sergio Garbaccio, Lucas Vagnoni, Julio Di Rienzo, Ana Canal, Fabiana Bigi, Angel Cataldi
Primary Institution: Institute of Biotechnology, Hurlingham, Argentina
Hypothesis
Is a strain of Mycobacterium bovis isolated from wild boars virulent in cattle?
Conclusion
The wild boar isolate of M. bovis is more virulent than the bovine strain, causing more severe lesions in cattle.
Supporting Evidence
- Animals infected with the wild boar strain showed earlier immune responses.
- More severe organ lesions were observed in cattle infected with the wild boar strain.
- Guinea pigs infected with the wild boar strain exhibited higher pathogenicity.
Takeaway
This study found that a type of bacteria from wild boars can make cows very sick, more so than a type from cows.
Methodology
Cattle were inoculated with two strains of M. bovis, and their immune responses and lesions were monitored over time.
Limitations
The study was limited to a small sample size and a short observation period.
Participant Demographics
Eight uninfected healthy Friesian calves approximately 3 months old.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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