Death patterns during the 1918 influenza pandemic in Chile

Gerardo Chowell, Lone Simonsen, Jose Flores, Mark A. Miller, Cécile Viboud

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Scarce information about the epidemiology of historical influenza pandemics in South America prevents complete understanding of pandemic patterns throughout the continent and across different climatic zones. To fill gaps with regard to spatiotemporal patterns of deaths associated with the 1918 influenza pandemic in Chile, we reviewed archival records. We found evidence that multiple pandemic waves at various times of the year and of varying intensities occurred during 1918-1921 and that influenza-related excess deaths peaked during July-August 1919. Pandemic-associated mortality rates were elevated for all age groups, including for adults >50 years of age; elevation from baseline was highest for young adults. Overall, the rate of excess deaths from the pandemic was estimated at 0.94% in Chile, similar to rates reported elsewhere in Latin America, but rates varied ≈10-fold across provinces. Patterns of death during the pandemic were affected by variation in host-specific susceptibility, population density, baseline death rate, and climate.

Original languageEnglish (US)
Pages (from-to)1803-1811
Number of pages9
JournalEmerging Infectious Diseases
Volume20
Issue number11
DOIs
StatePublished - Nov 1 2014

Fingerprint

Chile
Pandemics
Human Influenza
Mortality
Latin America
South America
Population Density
Climate
Young Adult
Epidemiology
Age Groups

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases
  • Epidemiology

Cite this

Chowell, G., Simonsen, L., Flores, J., Miller, M. A., & Viboud, C. (2014). Death patterns during the 1918 influenza pandemic in Chile. Emerging Infectious Diseases, 20(11), 1803-1811. https://doi.org/10.3201/eid2011.130632

Death patterns during the 1918 influenza pandemic in Chile. / Chowell, Gerardo; Simonsen, Lone; Flores, Jose; Miller, Mark A.; Viboud, Cécile.

In: Emerging Infectious Diseases, Vol. 20, No. 11, 01.11.2014, p. 1803-1811.

Research output: Contribution to journalArticle

Chowell, G, Simonsen, L, Flores, J, Miller, MA & Viboud, C 2014, 'Death patterns during the 1918 influenza pandemic in Chile', Emerging Infectious Diseases, vol. 20, no. 11, pp. 1803-1811. https://doi.org/10.3201/eid2011.130632
Chowell G, Simonsen L, Flores J, Miller MA, Viboud C. Death patterns during the 1918 influenza pandemic in Chile. Emerging Infectious Diseases. 2014 Nov 1;20(11):1803-1811. https://doi.org/10.3201/eid2011.130632
Chowell, Gerardo ; Simonsen, Lone ; Flores, Jose ; Miller, Mark A. ; Viboud, Cécile. / Death patterns during the 1918 influenza pandemic in Chile. In: Emerging Infectious Diseases. 2014 ; Vol. 20, No. 11. pp. 1803-1811.
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