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Figure 1

From: A systematic study towards evolutionary and epidemiological dynamics of currently predominant H5 highly pathogenic avian influenza viruses in Vietnam

Figure 1

Passive and active surveillance and identifying specific hosts of H5 HPAIVs. (A) Space-time distribution of provinces reporting H5 HPAIV outbreaks and active surveillance programs and the number of H5 HPAIV strains publicly registered (GISAID and/or IRD) in given provinces during 2014–2017. Province centroids are used to localize total number of H5 HPAIV strains published in each province. * and † indicate H5 HPAIVs detected from human cases of clade 1.1.2 and 2.3.2.1c viruses, respectively. (B) Summary statistics of domestic poultry species and environmental samples positive for H5 HPAIVs in our surveillance program. Number and size of each circle indicates sum of infected individuals.

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