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(A) Age-specific incidence of symptomatic DENV infections in infants. Black filled bars, hospitalized DHF; gray filled bars, hospitalized DF; open bars, mild outpatient dengue illness. (B) Age distribution of infants with symptomatic DENV infections. Black filled bars, number of hospitalized infants with DHF; open bars, number of symptomatic infants without DHF (hospitalized and non-hospitalized).
