Antiviral activity of <i>Conyza canadensis</i> (L.) Cronquist extracts grown in Tunisia

Abstract

Ethyl acetate, chloroform, butanol and methanol extracts of the aerial parts of Conyza Canadensis L. Cronquist were investigated for their antiviral activity against human cytomegalovirus (HCMV) AD-169 and Cox-B3 viruses by modification of the widely used shell-vial assay. The results showed that butanol and methanol extracts had the most potent antiviral activity against HCMV and Cox-B3 viruses.

Key words: Conyza canadensis (L.) Cronquist, antiviral activity, human cytomegalovirus (HCMV), Coxsackie B virus type 3 (CoxB-3).