Lyophilized encapsidated RNA (ArRNA) contains a region of the MS2 phage and is used as positive control for extraction and real time RT-PCR. The ArRNA is especially developed to be spiked in nasopharyngeal, salivary, urine and stool samples. Extraction is mandatory before use in real time RT-PCR. Packaged for 100 Rxns, for RUO (Research Use Only). SOPs in the attached pdf.