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Figure 2 | Virology Journal

Figure 2

From: Detailed genetic analysis of hemagglutinin-neuraminidase glycoprotein gene in human parainfluenza virus type 1 isolates from patients with acute respiratory infection between 2002 and 2009 in Yamagata prefecture, Japan

Figure 2

Phylogenetic tree of HN region by ML method. Phylogenetic tree based on the nucleotide sequence of the HN coding region (1233 nt), including the present strains (43) and representative reference strains (3), with branch lengths scaled under the SRDT model. Reference strains are shown in italic type.

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