FIGURE 2.

Antiviral activity of various concentrations of hypochlorous acid (HClO) against transmissible gastroenteritis virus (TGEV). Concentrated TGEV by polyethylene glycol was treated with 56.3, 113 or 225 ppm of HClO for 0.5 (), 1 (), 3 () or 5 () min followed by determination of virus titer with 50% tissue culture infective dose. All data represent the means + SD from three independent experiments. Dot line indicates detection limit for experiment. * indicates that values are significantly different between phosphate‐buffered saline (PBS) and each experimental condition