A microbial metabolite with antifungal and antiviral activities; active against several fungi including S. sake, S. fragilis, R. rubra, T. rubra, and C. albidus (MICs = 4-20 μg/ml); has activity against poliovirus, VSV, and NDV in vitro (MIC = 0.02 μg/ml for all); increases survival in mouse models of infection with influenza A2 (H2N2) or C. albicans when administered prior to infection