Understanding Global Influenza Seasonality
Author Information
Author(s): Tamerius James, Nelson Martha I., Zhou Steven Z., Viboud Cécile, Miller Mark A., Alonso Wladimir J.
Primary Institution: Fogarty International Center, National Institutes of Health
Hypothesis
What mechanisms explain the seasonal patterns of influenza disease activity observed globally?
Conclusion
The central questions in influenza seasonality remain unresolved, particularly in tropical regions where further research is needed.
Supporting Evidence
- Influenza epidemics occur in winter in temperate regions but also show seasonality in tropical areas.
- Humidity and temperature significantly affect the survival and transmission of the influenza virus.
- Vitamin D levels, influenced by sunlight exposure, may play a role in immunity against influenza.
Takeaway
Influenza outbreaks happen in different seasons around the world, and scientists are trying to figure out why this happens, especially in warm places.
Methodology
The review assessed various hypotheses and evidence from population-scale observations, mathematical models, and experiments related to influenza seasonality.
Limitations
The review highlights gaps in understanding seasonal mechanisms, especially in tropical regions.
Digital Object Identifier (DOI)
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