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Accelerated detection of lymphocytic choriomeningitis virus in diagnostic specimens
Canadian Journal of Microbiology
|November 1, 1976
Abstract:
Lymphocytic choriomeningitis virus could be demonstrated earlier in mice inoculated with clinical specimens if the mice were sacrificed before they appeared sick for examination by the fluorescent antibody technique. In the procedure, the optimal route for inoculation was intracerebral and the best organ tested for staining was the brain.
Insights
Detecting lymphocytic choriomeningitis virus (LCMV) in mice is faster when samples are examined before symptoms appear. Intracerebral inoculation and brain tissue staining proved most effective for early LCMV detection.
Area of Science:
- Virology
- Immunology
- Neurology
Background:
- Lymphocytic choriomeningitis virus (LCMV) is a significant pathogen.
- Early detection of LCMV is crucial for understanding disease progression and developing interventions.
Purpose of the Study:
- To determine the optimal method for the early demonstration of LCMV in experimentally infected mice.
- To evaluate different inoculation routes and tissue staining techniques for improved LCMV detection.
Main Methods:
- Mice were inoculated with clinical specimens containing LCMV.
- Mice were sacrificed at different time points, including before the onset of clinical signs.
- The fluorescent antibody technique was used to detect LCMV in various organs, with a focus on the brain.
- Intracerebral inoculation was compared with other routes.
Main Results:
- LCMV was demonstrated earlier in mice sacrificed before they appeared sick.
- Intracerebral inoculation was the optimal route for virus demonstration.
- The brain was the most suitable organ for fluorescent antibody staining, showing the earliest and clearest viral presence.
Conclusions:
- Sacrificing mice before the onset of illness significantly enhances the early detection of LCMV.
- Intracerebral inoculation and brain examination are recommended for the most effective early diagnosis of LCMV infection in mice using the fluorescent antibody technique.