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Volume 17, Number 2—February 2011

Dispatch

Oseltamivir-Resistant Pandemic (H1N1) 2009 Virus, Mexico

José Ernesto Ramirez-Gonzalez, Elizabeth Gonzalez-Duran, Patricia Alcantara-Perez, Claudia Wong-Arambula, Hiram Olivera-Diaz, Iliana Cortez-Ortiz, Gisela Barrera-Badillo, Ha Nguyen, Larisa Gubareva, Irma Lopez-Martinez, Jose Alberto Díaz-Quiñonez, Miguel Angel Lezana-Fernández, Hugo Lopez Gatell-Ramírez, Jose Angel Cordova Villalobos, Mauricio Hernández-Avila, and Celia Alpuche-ArandaComments to Author 
Author affiliations: Author affiliations: Instituto de Diagnóstico y Referencia Epidemiológicos, Mexico City, Mexico (J.E. Ramirez-Gonzalez, E. Gonzalez-Duran, P. Alcantara-Perez, C. Wong-Arambula, H. Olivera-Diaz, I. Cortez-Ortiz, G. Barrera-Badillo, I. Lopez-Martinez, J.A. Díaz-Quiñonez, M.A. Lezana-Fernández, H.L. Gatell-Ramírez, J.A.; Cordova Villalobos, M. Hernández-Avila, C. Alpuche-Aranda); Secretaría de Salud, Mexico City (J.E. Ramirez-Gonzalez, E. Gonzalez-Duran, P. Alcantara-Perez, C. Wong-Arambula, H. Olivera-Diaz, I. Cortez-Ortiz, G. Barrera-Badillo, I. Lopez-Martinez, J.A. Díaz-Quiñonez, M.A. Lezana-Fernández, H.L. Gatell-Ramírez, J.A. Cordova Villalobos, M. Hernández-Avila, C. Alpuche-Aranda); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (H. Nguyen, L. Gubareva)

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Table 1

Characteristics of patients with pandemic (H1N1) 2009 reported to the Institute of Epidemiologic Diagnosis and Reference, by age group, Mexico, May 2009–April 2010

Age group, y No. (%) patients
Female Male Total
0–1 9 6 15
1–4 30 23 53
5–9 40 34 74
10–19 67 83 150
20–29 66 65 131
30–39 25 34 59
40–49 25 24 49
50–59 19 19 38
>60 5 6 11
Unknown
 51
 61
 112
Total 337 (48.6) 355 (51.3) 692

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