1Dawood F S,Jain S, F'inelli L, et a! . Novel swine-origin influenza A (H1N1) virus investigation team. Emergence of a novel swine-origin influenza in humans[J]. N Engl J Med,2009,360:2 605:2 615.
2World Health Organization. http;www, who. int/mediacentre/news/statements/2OO9/hlnl_pandemic_phase6_20090611/en/index. html.
3Perez-PadillaR,de la Rosa-Zamboni D,Ponce de Leon S,et al. Pneumonia and respiratory failure from swine-origin influenza A (H1N1) in Mexico[J]. N Engl J Med 2009,361:680-689.
4Gregory AP, Robert MJ, Paul VT. Avian and pandemic influenza: an overview[J].Vaccine, 2007, 25 (6):3057 -3061.
5Center for Disease Control and Prevention. Update: novel influenzaA ( H1N1 ) virus infections-worldwide, May 6, 2009[EB/OL]. http: //www. ede. gov/mrnwr/preview /mmwrhtml/mmS817a1.htm.
6Chowell G, Bertozzi SM, Colchero MA, et al. Severe respirato ry disease concurrent with the circulation of H1N1 influenza [J]. N Engl J Med, 2009, 361 (7) : 674-679.
7Katz J, Hancock K, Veguilla V, et al. Serum cross-reactive antibody response to a novel influenzaA (H1N1) virus after vaccination with seasonal influenza vaccine [J]. MMWR Morb Mortal Wkly Rep, 2009, 58 (19): 521-524.
8Fraser C, Donnelly CA, Cauchemez S, et al. Pandemic poten tial of a strain of influenza A (H1N1) : early findings [J/OL]. Science, 2009, DOI: 10.1126/science. 1176062.
9PEREZ- PADILLAR, DE LA ROSA- ZAMBONI D, PONCE DE LEON S, et al. Pneumonia and respiratory failure from swine-origin influenza A( H1N1 ) in Mexico [ J]. N Engl J Med, 2009,361 (7) :680 - 689.
