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Percentage of K562 cells infected by DENV-2 strains. Cells infected with clade I and II isolates (M.O.I = 5) were collected between 24 and 48 hpi and subjected to flow cytometry with MAbs against the envelope protein. The data show means of triplicates and are representative of two independent experiments. Statistically significant observations are shown with p-values. Error bars indicate ± S.E.M.
