FIG. 1.
Representative amplicons for the PA, PB2, and NS genes of influenza A H1N1, H3N2, and H5N1 viruses. Lanes 1, 4, and 7, H1N1 virus; lanes 2, 5, and 8, H3N2 isolate; lanes 3, 6, and 9, H5N1 virus isolate. Lanes M, molecular size markers.
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