Figure 3From: Can vaccinia virus be replaced by MVA virus for testing virucidal activity of chemical disinfectants? Time-dependent virucidal activity of 0.7% formaldehyde against VACV tested in all 3 laboratories. *After this contact time the measurable RF in at least one of the laboratories was limited by cytotoxic reactions and/or the amount of infectious viruses in the virus stock.Back to article page