IBI's Viral Nucleic Acid Extraction Kit was specifically designed for purification of viral DNA/RNA from cell-free samples; such as serum, plasma, body fluids and the supernatant of viral-infected cell cultures. These kits are recommended for parallel purification of viral DNA including HBV and CMV, as well as viral RNA including HCV, HIV and HTLV. The detection limit for certain viruses depends on the sensitivity of individual PCR or RT-PCR assays.