Abstract: Provided herein are compositions and methods of using Seneca Valley Virus (SVV) or a derivative thereof and an interferon type I (IFN-I) inhibiting agent comprising an mTOR inhibitor for treating a cancer in a subject. The disclosed methods particularly rely upon the expression level of an ANTXR1 and the expression level of IFN-I in the cancer from the subject. Also provided herein are methods for predicting the efficacy of an SVV treatment comprising IFN-I inhibiting agent.

Abstract: Methods for producing HAV cDNA, products thereof, and uses thereof, are described. HAV cDNA is produced, for example, by reverse transcribing HAV RNA and subsequently inserting the HAV cDNA into bacterial plasmids by genetic-engineering techniques. Transformed bacteria are then cloned and cultured to produce replicated chimetic plasmids containing the HAV cDNA. Such HAV cDNA is useful in assaying for the presence of HAV and in the production of HAV antigen and in the production of antibodies against HAV.

Abstract: Methods for producing RNA viral cDNA, such as poliovirus ds cDNA, products thereof, and uses thereof, are described. Poliovirus cDNA is produced, for example, by reverse transcribing poliovirus RNA and subsequently inserting the poliovirus cDNA into bacterial plasmids by genetic-engineering techniques. Transformed bacteria are then cloned and cultured to produce replicated chimeric plasmids containing the cDNA poliovirus. Such poliovirus cDNA is useful in assaying for the presence of poliovirus and in the production of antibodies against poliovirus. It has also been found that full-length poliovirus cDNA is infectious, which means it can be employed in producing altered virus particles for vaccines.