Virkon S has a unique formulation; no other disinfectant has the same powerful composition. In terms of efficacy Virkon S has been proven highly effective against 65 strains of virus in over 19 viral families, 400 strains of bacteria and over 100 strains of fungi. This list of proven efficacy includes the major OIE List A diseases of concern; Avian Influenza (H5N1), Newcastle Disease, Classical Swine Fever (Hog Cholera) and Foot and Mouth Disease. Recognised by industry and governments worldwide as a disinfectant of choice for livestock disease prevention and control Virkon S? versatility provides the flexible solution for; surface, water and aerial disinfection, in hard water, on porous surfaces, at low temperatures and in the presence of organic challenge.