Outbreak of swine-origin influenza A (H1N1) virus infection - Mexico, March-April 2009

Centers for Disease Control and Prevention (CDC)

Research output: Contribution to journalArticle

Abstract

In March and early April 2009, Mexico experienced outbreaks of respiratory illness and increased reports of patients with influenza-like illness (ILI) in several areas of the country. On April 12, the General Directorate of Epidemiology (DGE) reported an outbreak of ILI in a small community in the state of Veracruz to the Pan American Health Organization (PAHO) in accordance with International Health Regulations. On April 17, a case of atypical pneumonia in Oaxaca State prompted enhanced surveillance throughout Mexico. On April 23, several cases of severe respiratory illness laboratory confirmed as swine-origin influenza A (H1N1) virus (S-OIV) infection were communicated to the PAHO. Sequence analysis revealed that the patients were infected with the same S-OIV strain detected in two children residing in California. This report describes the initial and ongoing investigation of the S-OIV outbreak in Mexico.

Original languageEnglish
JournalMMWR Morbidity and Mortality Weekly Report
Volume58
Issue number17
Pages (from-to)467-70
Number of pages4
ISSN0149-2195
Publication statusPublished - 2009

Keywords

  • Adolescent
  • Adult
  • Child
  • Child, Preschool
  • Disease Outbreaks
  • Female
  • Hospitals/statistics & numerical data
  • Humans
  • Infant
  • Infection Control/methods
  • Influenza A Virus, H1N1 Subtype
  • Influenza, Human/complications
  • Male
  • Mexico/epidemiology
  • Middle Aged
  • Population Surveillance/methods

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