Fig. 4: Maximum Likelihood phylogenetic tree inferred for 2853 H1pdm09 hemagglutinin gene sequences collected worldwide from 2009 to 2023 and including five H1pdm09v isolated in this study (A/Parana/10835/2021, A/Parana/20675/2022, A/Parana/5210/2023, A/Parana/28600/2020, and A/Parana/13897/2023). | Nature Communications

Fig. 4: Maximum Likelihood phylogenetic tree inferred for 2853 H1pdm09 hemagglutinin gene sequences collected worldwide from 2009 to 2023 and including five H1pdm09v isolated in this study (A/Parana/10835/2021, A/Parana/20675/2022, A/Parana/5210/2023, A/Parana/28600/2020, and A/Parana/13897/2023).

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

Fig. 4

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,). 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%. A Phylogenetic tree indicating swine-to-human introductions occurred in Brazil by gray-shaded forms. B Topology details for Clades H1 pdm #1 and #2. c Topology details for Clade H1 pdm #3.

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