Comparison of SARS-CoV-2 Indirect and Direct Detection Methods 260 Sciences - Life Sciences - Biology - Natural Sciences May 25, 2021 University of Toronto · Rod Bremner compares indirect methods that require RNA extraction, and direct RT-qPCR on patient samples. Image courtesy of Rod Bremner. Study Image courtesy of interviewee microbiology Log-in or Sign-up to Faculti Currently viewing this subject insight as a guest. You have insight(s) remaining for this month. Login Sign-up or Subscribe