Impact of Vaccination Timing on ICU Admissions During Influenza Pandemics
Author Information
Author(s): Utkarsh J. Dang, Chris T. Bauch
Primary Institution: Department of Mathematics and Statistics, University of Guelph
Hypothesis
Can interactions between timing of vaccine-altered influenza pandemic waves and seasonality in influenza complications lead to more severe outcomes?
Conclusion
Vaccination before a fall pandemic wave can inadvertently increase ICU admissions during winter months when the risk of severe outcomes is higher.
Supporting Evidence
- Vaccination can delay the peak of a pandemic influenza wave.
- Susceptibility to severe secondary bacterial infections varies seasonally.
- Vaccination programs that prevent more primary influenza infections can lead to increased ICU admissions.
Takeaway
Getting vaccinated before a flu outbreak can sometimes make things worse by causing more people to get really sick later on, especially in winter.
Methodology
A mathematical model was used to simulate influenza transmission and ICU admissions based on seasonal variations.
Limitations
The model simplifies complex interactions and may not capture all real-world dynamics of influenza transmission and outcomes.
Digital Object Identifier (DOI)
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