Fig 1.
Effects of selected disinfectants on phage viability. (A) Virkon. (B) Chloros. (C) Decon. Virkon reduces phage concentrations to the lower limit of detection at 0.1% (one-tenth of the manufacturer's recommended concentration) within 5 min. Chloros gives a 7-log10 reduction in titer within 30 s at the manufacturer's recommended dilution. Decon is apparently the least effective, requiring 30 min at the manufacturer's recommended concentration to produce a 7-log10 reduction in titer. Note: values on charts are set as “zero” for undetectable levels (i.e., no phage recovered from the most-concentrated sample plated). In reality, undetectable signifies a titer of less than 102 PFU/ml.