Stability
SHRV has been demonstrated to become inactivated following treatment with acid (pH = 3), chloroform (50%), and heat (56 °C). SHRV in distilled water can be completely inactivated by less than five minutes of exposure to 12.5 ppm chlorine, 50 ppm iodine, or a 1:2000 dilution of peroxygen disinfectant.
Exposure of infective virions in cell culture material to 2% formalin reduced infectivity by 99.9% after 5 minutes, and completely after 30 minutes. However, exposure of infectious cell culture material to 0.025% formalin for 60 minutes caused only a negligible reduction in infectivity, and more than 50 ppm chlorine was needed to inactivate the virus Also in cell culture fluids, exposure to 500 ppm iodine for 30 minutes did not reduce infectivity. The virus does not lose infectivity when exposed in cell culture fluids to malachite green for 6 hours at 5 ppm.
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