Fig. 3

A heatmap showing the similarity between each virus cluster and clusters similar to each other in groups A to I (the brighter the more similar; the darker the more dissimilar): Clusters 6, 9, and 42 with high similarity within group A were confirmed to be the reference virus first discovered in Wuhan, China in December 2019, 125 with low similarity is the Alpha variant called the British variant, viruses of group B are viruses with no variant information discovered in Oceania since mid-2020, viruses of groups C, D, E, F, G are Delta variant, viruses of group H are 490R-GH, and finally, group I of the virus was identified as an Omicron variant