Characterizing the epidemiology of the 2009 influenza A/H1N1 pandemic in Mexico.

ABSTRACT:

Background

Mexico's local and national authorities initiated an intense public health response during the early stages of the 2009 A/H1N1 pandemic. In this study we analyzed the epidemiological patterns of the pandemic during April-December 2009 in Mexico and evaluated the impact of nonmedical interventions, school cycles, and demographic factors on influenza transmission.

Methods and findings

We used influenza surveillance data compiled by the Mexican Institute for Social Security, representing 40% of the population, to study patterns in influenza-like illness (ILIs) hospitalizations, deaths, and case-fatality rate by pandemic wave and geographical region. We also estimated the reproduction number (R) on the basis of the growth rate of daily cases, and used a transmission m

SUBMITTER: Chowell G 

PROVIDER: S-EPMC3101203 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature