Objective To investigate the residents' cognition level of knowledge about osteoporosis and the health level of the life quality,and then to evaluate the contribution of the cognition of knowledge about osteoporosis to the health level of the life quality.Methods The questionnaires tiffed of"knowledge about osteoporosis"and"SF-36 health survey"were used to survey 997 residents in community of Tianlin and out-patients aged over 30 years old,and then be statistically analyzed.Results There were 28.1%,30.2%, 30.4%and 11.3% subjects whose life qualities were in the grades of poor,fit,good and excellent,respectively. The correlation analysis between knowledge about osteoporosis and life quality showed that the cognition level of knowledge about osteoporosis was the ganrantee factor of the health level of life quality,and was positively correlaled with the health level of life quality (P<0.01).Conclusions The knowledge of osteoporosis should be payed more attention to disseminate,and the health care professionals should develop the strategies and appropriate education programs according to the different needs in different population,thereby improving the residents' cognition level of knowledge about osteoporosis and improving the quality of life.

Objectives To explore the type and subtype distribution of influenza viruses in influenza-like patients and the hemagglutinin(HA)genetic variation of influenza A viruses in Shang- hai and Wuxi during the influenza prevalent season from 2004 to 2006.Methods Throat swabs were collected from the influenza-like patients in the sentinel hospitals and during the outbreaks,and then inoculated into MDCK cells to isolate influenza viruses,which were subsequently identified by direct immunofluorescence(DIF)and reverse transcription-polymerase chain reaction(RT-PCR).HA seg- ments of influenza A viruses were sequenced to analyze the genetic variation of HA.Results One hundred and twenty-six strains of influenza viruses,including 53 H3N2,43 H1N1 and 30 influenza B viruses were isolated from August 2004 to September 2006,and 7 outbreaks.All these outbreaks oc- curred in February or March The pathogens were identified as H1N1 in one outbreak,H3N2 in two outbreaks,B in two outbreaks and mix infections in two outbreaks(1 H1N1 and B,1 H3N2 and B, respectively).By sequencing the HA segment,the H3 and H1 segments were all homologous to the isolates from different countries in the same period.Conclusion H3N2 and H1N1 are the major strains prevalent in Shanghai and Wuxi,which reach the peak from January to March No HA and NA recom- binant strains and new HA and NA subtypes are found in these areas.The variations of H1 and H3 are similar to those found in other countries.