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.

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

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.