Figure 4.

A shared mutation defines the large B.1.160 transmission lineage. The close-up view of the B.1.160 branch on the phylogenetic tree shows all viral sequences of the B.1.160 lineage that have been included in the phylogenetic analysis (Fig. 3). Tips and tip branches are coloured based on the broad geographic origin of the samples. The two monophyletic Hungarian clades (2A and 2F, highlighted with an orange background) and the four Hungarian singletons are shown as red branches. Counties of origin of the Hungarian samples are indicated on the right side of the figure and are colour-coded. Dotted vertical lines indicate the first day of each month. The start and end dates of the two waves are indicated with solid vertical lines. Samples carrying the R385K mutation are marked with a blue dot. The blue triangle marks the MRCA of the clade 2A carrying the R385K mutation in the nucleocapsid gene.