In the course of this investigation, the antiviral activity of 2% formalin, 2% Lysovet RJ-forte and 2% sodium hypochlorite was studied on the wide host range CELO-virus. Experimental proce. dure used, was that discribed by GVS (1974).
Results obtained could be summerised in the following:
1. CELO-virus showed comparativly greater resistance to disinfection.
2. In suspension experiments 2% formalin and 2% Lysovet RJ-forte needed at least 60 min. exposure to inactivate CELO-virus in the presence of protecting substance. 3. 2% Sodium hypochlorite failed to show any disinfecting acti. rity against CELO-virus in suspension in presence of protecting sub stance ever after 120 min exposure. 4. In CELO-carrier surface experiments with 2% formalin an eff ective disinfection could be obtained in case of gauze and egg shell carriers only after 120 min. exposure. Wood-carrier showed diff iculty to disinfection. <90% disinfection success was obtained even after 120 min. exposuré.