Fig. 2From: Exploration of a new hepatitis a surveillance system in Beijing, China: based on molecular epidemiologyPhylogenetic analysis of HAV sequences obtained from Beijing in 2019. Nucleotide (nt) sequences from the VP1/2A junction region (321 bases) and 16 Beijing sequences from this study were analyzed by the neighbor-joining (NJ) method. The numbers at the nodes indicate bootstrap percentages over 1,000 replicates (only values >70% are shown). The bar length indicates genetic distanceBack to article page