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Table 3 The percentage of cell viability as measured by MTT assay upon treating the DENV1-infected Vero E6 cells with maximum non-toxic dose of six medicinal plants.

From: Screening of anti-dengue activity in methanolic extracts of medicinal plants

Treatments Cell viability (%)
Control (Untreated cells) 100.00 ± 10.50*
Positive control (Cells infected with DENV-1) 44.60 ± 4.42
Andrographis paniculata 113.00 ± 4.65*
Momordica charantia 98.00 ± 8.69*
Cymbopogn citrates 32.00 ± 6.93
Ocimum sanctum 48.00 ± 7.16
Citrus limon 52.00 ± 7.54
Pelargonium citrosum 41.40 ± 2.75
  1. The data shown are mean ± S.D. '*' denotes significant difference at P < 0.05, compared to the positive control using unpaired t-test, performed by GraphPad Instat version 3.0.