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The use of a simple barrier system to exclude murine pathogens
Laboratory Animals
|January 1, 1977
Abstract:
A simple barrier system was used successfully to exclude Mycoplasma pulmonis and Sendai virus from a conventional mouse room. 49 weeks after introduction of the barrier system of management Pasteurella pneumotropica was first isolated from animals in the room.
Insights
A simple barrier system effectively excluded Mycoplasma pulmonis and Sendai virus in mouse rooms. However, Pasteurella pneumotropica was later detected, indicating potential challenges in maintaining microbial control over time.
Area of Science:
- Veterinary Science
- Microbiology
- Animal Health
Background:
- Conventional mouse rooms can harbor opportunistic pathogens.
- Maintaining a pathogen-free environment is crucial for research integrity.
- Mycoplasma pulmonis and Sendai virus are common murine pathogens.
Purpose of the Study:
- To evaluate the efficacy of a barrier system in excluding specific murine pathogens.
- To assess the long-term impact of barrier management on the microbial status of a mouse room.
Main Methods:
- Implementation of a simple barrier system in a conventional mouse room.
- Monitoring of the room's microbial environment over 49 weeks.
- Isolation and identification of microbial agents from the animals.
Main Results:
- Successful exclusion of Mycoplasma pulmonis and Sendai virus was achieved.
- Pasteurella pneumotropica was first isolated 49 weeks post-introduction of the barrier system.
- The barrier system demonstrated initial effectiveness but did not prevent all microbial contamination long-term.
Conclusions:
- A basic barrier system can effectively prevent the introduction of common murine pathogens.
- Long-term surveillance is necessary to detect the emergence of other opportunistic pathogens.
- Management strategies may need adjustments to ensure sustained microbial control in barrier facilities.