Comparison of the signature amino acids in the proteins of Korean H7 isolates in wild birds and poultry with H7N9 in China.

* Since 2007, a barcoding system utilising mitochondrial DNA of bird faeces has been employed to determine host species. The DNA barcoding system can identify over 98% bird species. Wild duck indicates mallard or spot-billed duck, which might have recently split their speciation and have many hybrid. **one or more genes of some Korean viruses were published in a previous report [25], [26] and other remaining genes ware analyzed and deposited in Genbank (KC609764-KC609769, KC609771-KC609838, KC609840-KC609869, KC609872-KC609979).