Cited by 110Influenza Virus Research StudiesRespiratory viral infections researchData-Driven Disease Surveillance

Mortality Burden of the A/H1N1 Pandemic in Mexico: A Comparison of Deaths and Years of Life Lost to Seasonal Influenza

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Charu, Vivek, Chowell, Gerardo, Palacio Mejia, Lina Sofia, Echevarría-Zuno, Santiago, Borja-Aburto, Víctor H., Simonsen, Lone, Miller, Mark A., Viboud, Cécile·2011·Clinical Infectious Diseases

Abstract

BACKGROUND: The mortality burden of the 2009 A/H1N1 influenza pandemic remains controversial, in part because of delays in reporting of vital statistics that are traditionally used to measure influenza-related excess mortality. Here, we compare excess mortality rates and years of life lost (YLL) for pandemic and seasonal influenza in Mexico and evaluate laboratory-confirmed death reports. METHODS: Monthly age- and cause-specific death rates from January 2000 through April 2010 and population-based surveillance of influenza virus activity were used to estimate excess mortality and YLL in Mexico. Age-stratified laboratory-confirmed A/H1N1 death reports were obtained from an active surveillance system covering 40% of the population. RESULTS: The A/H1N1 pandemic was associated with 11.1 excess all-cause deaths per 100,000 population and 445,000 YLL during the 3 waves of virus activity in Mexico, April-December 2009. The pandemic mortality burden was 0.6-2.6 times that of a typical influenza season and lower than that of the severe 2003-2004 influenza epidemic. Individuals aged 5-19 and 20-59 years were disproportionately affected relative to their experience with seasonal influenza. Laboratory-confirmed deaths captured 1 of 7 pandemic excess deaths overall but only 1 of 41 deaths in persons >60 years of age in 2009. A recrudescence of excess mortality was observed in older persons during winter 2010, in a period when influenza and respiratory syncytial virus cocirculated. CONCLUSIONS: Mexico experienced higher 2009 A/H1N1 pandemic mortality burden than other countries for which estimates are available. Further analyses of detailed vital statistics are required to assess geographical variation in the mortality patterns of this pandemic.

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  • In the 2009 H1N1 pandemic, Mexico experienced a higher mortality rate than higher-income countries.

    “For example, globally, Mexico experienced a higher mortality rate than that in higher-income countries.12”

    From The COVID-19 pandemic and health inequalities (2020) · cites this paper as [12]

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  1. [31]31. Dauer CC, Serfling RE: Mortality from influenza, 1957-58 and 1959- 60. Am. Rev. Resp. Dis. 1961; 83:15-28.

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Authors
Charu, V., Chowell, G., Palacio Mejia, L. S., Echevarría-Zuno, S., Borja-Aburto, V. H., Simonsen, L., Miller, M. A., & Viboud, C.
Affiliations
National Institutes of Health (US)
Venue
Clinical Infectious Diseases
Published
2011-11-15
Volume
53
Issue
10
Pages
985-993
ISSN
  • 1058-4838 (ISSN-L)
  • 1537-6591
OpenAlex
W2109227367
Cited by
110
References
37
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 4 · 2022: 2 · 2021: 13 · 2020: 13 · 2019: 4 · 2018: 2 · 2017: 8 · 2016: 2 · 2015: 7 · 2014: 13 · 2013: 15 · 2012: 23
FWCI
12.17
Type
journal article
Language
en
Open access
Locations
  • Clinical Infectious Diseases (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Health and Human Services
  • U.S. Department of Homeland Security
  • National Institutes of Health
  • Science and Technology Directorate
  • Fogarty International Center
Topics
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Health Sciences › Medicine › Epidemiology › Respiratory viral infections research
  • Health Sciences › Medicine › Epidemiology › Data-Driven Disease Surveillance
Keywords
2009 H1N1 pandemic, excess mortality, years of life lost, seasonal influenza, age-specific mortality, older adults, Mexico
MeSH terms
Adolescent, Adult, Age Factors, Aged, Aged, 80 and over, Child, Child, Preschool, Humans, Infant, Influenza, Human, Life Expectancy, Mexico, Middle Aged, Seasons, Influenza A Virus, H1N1 Subtype, Young Adult, Pandemics

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