Yes, Mycoplasma Off is active against naked viruses and also spores. The ingredient glutaraldehyde is responsible for removal of the spores and naked virus as well as of fungi. Surface Disinfection with concentrated product: hospital prophylaxis: 1 min. virucidal according to RKI, BG 01/2004 incl. HBV/HCV/HIV: 30 s. virucidal: 30 min. adenovirus: 5 min. polyomavirus (SV 40): 15 min