Fig. 4. Phylogenetic tree for the full-length neuraminidase of H1N2 and H3N2 viruses isolated in a slaughterhouse in Vietnam in 2013–2014.
The trees were constructed with PhyML. Branch support aLRT statistics were shown at major nodes with values larger or equal to 0.8. GenBank accession numbers of retrieved sequences are indicated. Red: sequences from our study; blue: sequences from Takemae et al.28; green: viruses from Vietnam from other studies including H1N1pdm09 from NIHE; black: other sequences from GenBank