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Figure 1 | BMC Research Notes

Figure 1

From: Monitoring the antigenic evolution of human influenza A viruses to understand how and when viruses escape from existing immunity

Figure 1

Evolutionary dynamics of human influenza A/H3N2 viruses. Each row represents a single amino acid site on the HA1 domain. Each column represents single or multiple major amino acid (MAA) of the site in a year. Varied colors and white were used to label the single MAA and multiple MAAs, respectively. Vaccine strains listed below the year denote annual influenza epidemics.

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BMC Research Notes

ISSN: 1756-0500

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