Russian COVID-19 test system can detect UK and other coronavirus strains Russiaâs Sistema-BioTech, a subsidiary of the Sistema Joint Stock Financial Corporation said its specialists analyzed a wide spectrum of related viruses, including the 2003 atypical pneumonia causative agent, and concluded that a mutation in the 3CL proteinase gene is usually lethal for the viruses MOSCOW, February 1. /TASS/. Russia’s Sistema-BioTech, a subsidiary of the Sistema Joint Stock Financial Corporation, confirmed the possibility of detection of mutated SARS-CoV-2 coronavirus strains, including the Britis...