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Chinese Journal of Epidemiology ; (12): 611-615, 2009.
Article in Chinese | WPRIM | ID: wpr-261314


Objective Feasibility of using MNA cell-culture inoculation test to detect and isolate the street rabies virus. Methods Using MNA cell-culture inoculation test, fluorescent antibody test (FAT) and sandwich ELISA with double-antibodies to detect 33 specimens of street rabies virus, 20 specimens of negative canine brains and 4 specimens of healthy mice brains. Results 33 specimens of street rabies virus were positive to the cell-culture inoculation test but the others were negative. The concordances of MNA cell-cultured inoculation test with FAT and sandwich ELISA with double-antibodies were both 100%. Conclusion MNA cell-culture inoculation test appeared to be both highly sensitive and specific in detecting the street rabies virus, and could be used in detection and isolation of the virus.

Chinese Journal of Epidemiology ; (12): 365-368, 2008.
Article in Chinese | WPRIM | ID: wpr-287764


Objective To collect more data on the epidemiology of hantavirus in rodents in Cixi,Zhejiang province.Methods Rodents were captured in Cixi,where hemorrhagic fever with renal syndrome (HFRS)appeared endemic.Hantavirus antigens in the rat lungs were detected by immunofluorescence assay.Partial S segment sequences were amplified by reverse transciption-polymerase chain reaction(RTPCR)and then sequenced.The phyologenetic trees were constructed by maximum likelihood method to detect the genetic characteristics of hantavirus.Results A total of 243 rodents were trapped in the epidemic areas,and hantavirus antigens were identified in 7 out of these lung samples(2.88%).Partial S segment sequences(620-999 nt)were recovered from 6 samples and sequenced.Data from phylogenetic analysis of these S segment sequences indicated that all viruses belonged to Seoul virus(SEOV),despite the origins of sources were either from Rattus norvegicus or from R.fzabipectus.These viruses could further be divided into two distinct lineages but the viruses carried by R.norvegicus were different from those carried by R.flabipectus.Conclusion Two distinct lineages of SEOV had been cocirculating in rodents in Cixi.