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Effect of pH on the antiviral concentration range of monogallate and digallate tea flavonoids against HSV-1, pH 6.6 (A), HSV-2, pH 6.6 (B), VSV, pH 6.6 (C), HSV-1, pH 8.0 (D), HSV-2, pH 8.0 (E), and VSV, pH 8.0 (F). Isolates were prepared and titers were determined as described for Fig. 2.
