Molecular Epidemiology of GI.3 Norovirus Outbreaks from Acute Gastroenteritis Surveillance System in Taiwan, 2015–2019

Figure 2

Phylogenetic analysis of Taiwan GI.3 RdRp genes (a) and VP1 genes (b) during 2015–2019. The RdRp tree was constructed from 708 bp (nucleotide positions 4694–5401 based on the Hu/GI/Otofuke/1979/JP reference strain) (accession number AB187514), and the VP1 tree was constructed from 1599 bp (nucleotide positions 5388–6986 based on the reference strain AB187514). The phylogeny of time-scaled analysis was summarized from MCMC phylogenies of the RdRp and VP1 genes by using a relax-clock model with uncorrelated lognormal distribution in BEAST.

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