ANTIVIRAL ACTIVITY OF ACHYROCLINE-FLACCIDA WEIN-DC AQUEOUS EXTRACT

Aqueous extracts (AE) of chyrocline flaccida exhibit true antiviral ac tivity in vitro against different members of the Herpesvirus family (h erpes simplex virus type 1 and 2, human cytomegalovirus, bovine herpes virus and lower activity with pseudorabies virus). The extract had no activity against some RNA (naked and enveloped) viruses and adenovirus es. The extract was not virucidal but its antiviral index (AI) was suf ficiently high to justify further analysis. A preliminary characteriza tion indicates that an early step of viral replication was affected by the aqueous extract.