Summerfield et al. described the Acanthospermum hispidum
(Summerfield et al. 1997) activity against animal pathogenic herpes
viruses, pseudorabiesvirus (PRV) and bovine herpesvirus 1 (BHV-
1). More recently, Glatthaar-Saalmüller et al. (2001) were able to
show antiviral activity of an extract from Eleutherococcus senticosus
against human rhinovirus (HRV), human respiratory syncytial
virus (RSV) and influenza A virus, which was discussed as RNAvirus
specific reactivity. In addition, a very broad antiviral activity