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Absolute Humidity and the Seasonal Onset of Influenza in the Continental United States

Open access
Shaman, Jeffrey, Pitzer, Virginia E., Viboud, Cécile, Grenfell, Bryan T., Lipsitch, Marc·2010·PLoS Biology

Abstract

Much of the observed wintertime increase of mortality in temperate regions is attributed to seasonal influenza. A recent reanalysis of laboratory experiments indicates that absolute humidity strongly modulates the airborne survival and transmission of the influenza virus. Here, we extend these findings to the human population level, showing that the onset of increased wintertime influenza-related mortality in the United States is associated with anomalously low absolute humidity levels during the prior weeks. We then use an epidemiological model, in which observed absolute humidity conditions temper influenza transmission rates, to successfully simulate the seasonal cycle of observed influenza-related mortality. The model results indicate that direct modulation of influenza transmissibility by absolute humidity alone is sufficient to produce this observed seasonality. These findings provide epidemiological support for the hypothesis that absolute humidity drives seasonal variations of influenza transmission in temperate regions.

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Crossref · 10.1371/journal.pbio.1000316

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Metadata

Authors
Shaman, J., Pitzer, V. E., Viboud, C., Grenfell, B. T., & Lipsitch, M.
Venue
PLoS Biology
Published
2010-02-23
Volume
8
Issue
2
Pages
e1000316
ISSN
  • 1544-9173 (ISSN-L)
  • 1545-7885
OpenAlex
W2169258494
Cited by
635
References
2
FWCI
25.58
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Absolute Humidity and the Seasonal Onset of Influenza in the Continental United States. https://app.cochat.ai/papers/10.1371/journal.pbio.1000316
The paper
Shaman, J., Pitzer, V. E., Viboud, C., Grenfell, B. T., & Lipsitch, M. (2010). Absolute Humidity and the Seasonal Onset of Influenza in the Continental United States. PLoS Biology. https://doi.org/10.1371/journal.pbio.1000316

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.