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Updated: Jun 19, 2026
High-throughput Detection Method for Influenza Virus
Published on: February 4, 2012
AN ATTEMPT TO ISOLATE A FILTER-PASSING VIRUS IN EPIDEMIC INFLUENZA
1Department of Medicine of the University of Toronto, Toronto, Canada.
Abstract:
1. Six cases of epidemic influenza in various stages of disease were investigated. 2. Suspicious cultures of bodies resembling Bacterium pneumosintes were obtained in three cases, twice from the lung filtrates of inoculated animals and once from the filtrate of nasopharyngeal washings direct. 3. In these instances material was obtained within 36 hours of the acute onset, thus confirming the observations of Olitsky and Gates. 4. Macroscopic and microscopic findings in the lungs of inoculated animals were uniformly negative.
Insights
Researchers investigated epidemic influenza, finding suspicious cultures resembling Bacterium pneumosintes in some patients and animal models. These findings, observed early in acute illness, align with prior research on influenza virus isolation.
Area of Science:
- Virology
- Microbiology
- Epidemiology
Background:
- Epidemic influenza poses a significant public health challenge.
- Understanding the causative agents of influenza is crucial for disease control.
Purpose of the Study:
- To investigate the presence of potential etiological agents in epidemic influenza cases.
- To confirm early observations regarding influenza pathogen isolation.
Main Methods:
- Investigation of six epidemic influenza cases at various disease stages.
- Culturing of biological samples, including lung filtrates from inoculated animals and direct nasopharyngeal washings.
- Microscopic and macroscopic examination of animal lung tissues.
Main Results:
- Suspicious cultures resembling Bacterium pneumosintes were obtained in three cases.
- Positive cultures were identified from animal lung filtrates and direct nasopharyngeal washings.
- Lung findings in inoculated animals were consistently negative.
Conclusions:
- The study provides evidence supporting the presence of Bacterium pneumosintes in influenza cases.
- Early isolation of the suspected agent within 36 hours of onset is confirmed.
- Further research is needed to elucidate the role of Bacterium pneumosintes in influenza pathogenesis.
