The SilBic Nucleic Acid Extraction Kit was designed specifically for efficient extraction/purification of DNA and RNA from cell-free samples such as serum, plasma, body fluids, nasopharyngeal and oropharyngeal swabs in viral transport medium (VTM) and the supernatant of virally infected cell cultures, etc. The efficient glass fiber spin column system is optimized for nucleic acid purification from a wide variety of both DNA and RNA viruses such as SARS-CoV-2, etc. The purified DNA/RNA can be used directly in qPCR and qRT-PCR assays.