LeGene RnaUs Total RNA prep from respiratory specimens provides an easy and reliable method for isolating total viral RNA from plasma, serum nasopharyngeal or oropharyngeal aspirates or washes, nasopharyngeal or oropharyngeal swabs, bronchoalveolar lavage, tracheal aspirates, and sputum. This procedure has been tested for isolating nucleic acids from Hepatitis A, Hepatitis C and HIV. The isolated RNA can be used for PCR, qRT-PCR and other downstream applications.