These nested PCR
products were purified using a commercial purification kit
(Bioneer, Daejeon, South Korea), and sequenced unidirec-tionally using the forward primer used in the second-round
PCR. Sequence results were edited and analyzed by BioEdit
version 7.2 (http://www.mbio.ncsu.edu/bioedit/bioedit.html), and
consensus sequences were compared with GenBank reference
sequences using the BLAST query facility (http://www.ncbi
.nlm.nih.gov/).