Objective To analyze the difference of HA1 region between isolation strains and vaccine strains of influenza viruses subtype A1 in Jiangxi province from 2005 to 2006,and investigate the mutation of influenza viruses in Jiangxi province and the protection effect of the vaccine strains recommended by WHO. Methods The specimens of nasopharyngeal swabs were collected from suspected cases of influenza in monitor hospitals and influenza epidemic areas. RNA of the influenza viruses subtype A1 isolated was extracte...

Full text in Chinese can be downloaded at Chinese version of F.I.C