Research Article

Construction of Multilevel Structure for Avian Influenza Virus System Based on Granular Computing

Table 2

Three signature viruses of the first level structure.

NumberVirus numberVirus signature

A1850A/Pekin duck/Singapore/F59/04/98(H5N2)
A258A/chicken/Tunisia/145/2012(H9N2)
A31A/American green-winged teal/Washington/1595750/2014(H5N1)
Sum909ā€‰