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Polioviruses can survive exposure to temperatures up to 75°C for 1 hour, with surviving progeny exhibiting increased thermoresistance.
SummarySuspensions of Polioviruses Types I, II and III in medium 199 derived from infected monkey kidney cell cultures were not completely inactivated following exposure for 1 hour to temperatures of 60° and 65°C. In one instance infectious virus was demonstrated in a suspension of Poliovirus Type II after heating at 75°C for 1 hour. Progeny of virus surviving at this temperature exhibited increased thermoresistance.
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Medearis et al. (1960) studied this question.
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