Volume 25, Number 1—January 2019
Dispatch
Canine Influenza Virus A(H3N2) Clade with Antigenic Variation, China, 2016–2017
Figure 2

Figure 2. Antigenic cartograph representative of hemagglutinin inhibition (HI) titers of canine influenza viruses, China, 2009–2017, showing antigenic groups A–C. Map was generated by using AntigenMap 3D (http://sysbio.cvm.msstate.edu/software/AntigenMap) and HI data shown in Table 2. One unit (cell) represents a 2-fold change in HI titer.
1These authors contributed equally to this article.
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