Erratum: Hepatitis E virus isolated from rabbits is genetically heterogeneous but with very similar antigenicity to human HEV. Issue 6 (12th April 2013) - Wang, Song; Dong, Chen; Dai, Xing; Cheng, Xianfeng; Liang, Jiuhong; Dong, Min; Purdy, Michael A.; Meng, Jihong