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Table 2 Antiviral assay based on cytopathic effects denoted by degree of inhibition 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

Plant species Degree of inhibition
Andrographis paniculata +++
Momordica charantia ++
Cymbopogn citratus +
Ocimum sanctum +
Citrus limon -
Pelargonium citrosum -
  1. +++ 75% inhibition, ++ 50% inhibition, + < 50% inhibition, - no inhibition
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