claim: latest data show nearly 80 % efficacy for favipiravir in covid-19, say rdif and chemrar
evidence_1: the dhaka trial: clear-cut evidence favipiravir effective against covid-19 with compelling results 3.", "the drug's efficacy was above a threshold of 80%, which is the criterion for a drug with high antiviral activity.", "the drug 's efficacy was above a threshold > of 80%, which is the criterion for a drug with high antiviral activity.")