3Dawood FS, Jain S, Finelli L, et al. Emergence of a Novel Swine- Origin Influenza A (H1 N1 ) Virus in Humans[J]. N Engl J Med, 2009,360(25) :2605-2615.
4Human infection with pandemic ( H1N1 ) 2009 virus: updated interim WHO guidance on global surveillance [ EB/OL ]. WHO, http://www, who. int/csr/resourees/publications/swineflu/interim _guidanee/en/index. html.
5Infection prevention and control in health care for confirmed or suspected cases of pandemic ( H1N1 ) 2009 and influenza-like illnesses[ EB/OL ]. WHO, http://www, who. int/csr/resources/ publications/swineflu/swineinfinfcont/en/index, html.
