Fig. 3: Maximum Likelihood phylogenetic tree inferred for 3209 N2 neuraminidase gene sequences of influenza A viruses collected worldwide from 1969 to 2022, and including the three N2v described in this study, A/Parana/3625/2020(H1N2)v (Case 1), A/Parana/28600/2020(H1N2)v (Case 2), and A/Parana/51528/2021(H3N2)v (Case 5). | Nature Communications

Fig. 3: Maximum Likelihood phylogenetic tree inferred for 3209 N2 neuraminidase gene sequences of influenza A viruses collected worldwide from 1969 to 2022, and including the three N2v described in this study, A/Parana/3625/2020(H1N2)v (Case 1), A/Parana/28600/2020(H1N2)v (Case 2), and A/Parana/51528/2021(H3N2)v (Case 5).

From: Zoonotic transmission of novel Influenza A variant viruses detected in Brazil during 2020 to 2023

Fig. 3

Swine sequences isolated in Brazil contains the state of isolation within its names (Brazil_PR = Paraná, Brazil_RS = Rio Grande do Sul, Brazil_SC = Santa Catarina). The tree is midpoint rooted for clarity. Branches are colored by host and cases are color-coded according to the figure key. Branch lengths are drawn to scale representing nucleotide substitutions per site. Black-circles at the internal nodes identify clades supported by SH-aLRT > 80% and/or UFB > 95%. A Phylogenetic tree indicating the swine-to-human introductions occurred in Brazil by gray-shaded forms. B Topology details for N2 #4 Brazilian clade. C Topology details for N2 #2 Brazilian clade.

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