An antiviral substance from penicillium cyaneo-fulvum (further studies).

Interest in the study of antiviral substances stems from the fact that classical chemotherapy as it is known in bacterial diseases has thus far not been successful in the field of viral diseases. However, any proven antiviral agent is a potential drug against virus infection. Although the ultimate goal of effective chemotherapy of virus infections may or may not be attained, information concerning such substances may provide clues to the nature of host-virus interactions and help to elucidate the patterns of the pathogenesis of virus diseases (Zimmermann and Schafer, 1960; Melnick and Rapp, 1965) and also to afford tools for the classification of viruses (Tamm and Eggers, 1962; Barry et al., 1962). [...