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[The temperature stability of bovine parvovirus].

The stability of the bovine Parvovirus, strain Haden against moist heat in the temperature range 75 to 90 degrees C was tested. It was found that the resistance depended largely on the medium (distilled water, water of standardized hardness (WSH), plasm) in which the viruses were suspended during heating. In WSH the resistance was highest. When heated in plasm, the viruses were inactivated in two phases. From the temperature dependence of the D-values, z-values of 5,6 for distilled water and 8,2 for WSH were found. It is recommended to use the Parvovirus for the evaluation of chemo-thermic and thermic disinfection procedures in view of virucidal effectiveness. The usual pasteurizing procedures fail to inactivate the Parvovirus. To eliminate Parvoviruses from blood products, other methods are, therefore, necessary.