Study of Influenza A Virus Spread in the US
Author Information
Author(s): Martha I. Nelson, Laurel Edelman, David J. Spiro, Alex R. Boyne, Jayati Bera, Rebecca Halpin, Elodie Ghedin, Mark A. Miller, Lone Simonsen, Cecile Viboud, Edward C. Holmes
Primary Institution: Center for Infectious Disease Dynamics, Department of Biology, The Pennsylvania State University
Hypothesis
To determine the spatial and temporal dynamics of influenza A virus during a single epidemic season.
Conclusion
The study found that multiple clades of influenza A viruses co-circulated in the US during the 2006-2007 season, revealing complex patterns of spread.
Supporting Evidence
- The study analyzed 353 whole-genome sequences of influenza A viruses.
- Phylogenetic analysis revealed multiple clades co-circulating in the US.
- The research highlighted the complexity of influenza virus spread during the epidemic.
Takeaway
This study looked at how the flu virus spread across the US in one season and found that many different types of the virus were moving around together.
Methodology
Phylogenetic analysis of whole-genome sequences of 284 A/H1N1 and 69 A/H3N2 viruses collected across the continental US.
Potential Biases
Potential underrepresentation of areas with high international travel.
Limitations
Geographical biases in sampling may have affected the observed patterns of spread.
Participant Demographics
Viruses were collected from patients across 33 localities in 18 US states.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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