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>Effect of Stomach and Gut Juices on Infectivity of Low and High Passaged Strains of T.G.E. Coronavirus: Properties of a Virus Mutant Resistant to Inactivation by Stomach Juice Obtained by Cycles of Survivor Selection in Tissue Culture
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Effect of Stomach and Gut Juices on Infectivity of Low and High Passaged Strains of T.G.E. Coronavirus: Properties of a Virus Mutant Resistant to Inactivation by Stomach Juice Obtained by Cycles of Survivor Selection in Tissue Culture