“…Special attention is paid to biological effects of ribonucleases such as antiviral and cytotoxic activities [5,11]. Almost all studied species of bacilli, including B. thuringiensis (Bt), possess ribonucleases that exhibit a wide range of biological effects against pro-and eukaryotic cells [4,14]. Ribonucleases produced by bacilli exhibited antiviral activity against RNA-containing viruses such as polio, tick-borne encephalitis, and rabies viruses [3,7,13].…”