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Outbreak of swine-origin influenza A (H1N1) virus infection - Mexico, March-April 2009.
MMWR Morb Mortal Wkly Rep. 2009 May 8;58(17):467-70
Authors:
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.
PMID: 19444150 [PubMed - in process]