3Hogle JM,Chow M,Filman DJ. Three-dimensional structure of poliovirus at 2.9 a resolution[J].{H}SCIENCE,1985,(4720):1358-1365.
4Roivainen M,Blomqvist S,Al-Hello H. Highly divergent neurovirulent vaccine-derived polioviruses of all three serotypes are recurrently detected in Finnish sewage[J].Euro Surveill,2010,(19):65.
5Manor Y,Handsher R,Halmut T. Detection of poliovirus circulation by environmental surveillance in the absence of clinical cases in Israel and the Palestinian Authority[J].{H}Journal of Clinical Microbiology,1999.1670-1675.
6Blomqvist S,Savolainen C,Laine P. Characterization of a highly evolved vaccine-derived poliovirus type 3 isolated from sew age in Estonia[J].{H}Journal of Virology,2004,(09):4876-4883.