Influenza A Virus Outbreak in Police Training School, Delhi 2009
Author Information
Author(s): Raut D.K., Singh Saudan, Roy Neelam, Nair Deepthi, Sharma Rinku
Primary Institution: VM Medical College & Safdarjung Hospital, New Delhi
Hypothesis
What were the causes and transmission modes of the influenza outbreak at the Police Training School?
Conclusion
The outbreak was confirmed to be caused by Influenza A, with a peak incidence among male trainees in a crowded environment.
Supporting Evidence
- 74 cases of influenza-like illness were identified among 1600 trainees.
- The attack rate of influenza-like illness ranged from 3.6% to 16.3% per tent.
- Symptoms included sore throat, myalgia, and headache, with no reported deaths.
Takeaway
A lot of trainees got sick with the flu because they were living close together in tents, especially after heavy rain.
Methodology
Investigated cases through interviews, clinical examinations, and collected samples for viral testing.
Potential Biases
Potential bias in case identification due to reliance on self-reported symptoms.
Limitations
The study was limited to a single outbreak in a specific location and only included male trainees.
Participant Demographics
All participants were male trainees aged 20 to 25 years, with a mean age of 22.2 years.
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