id author title date pages extension mime words sentences flesch summary cache txt cord-312996-qzu8pkyt Iles, R. K. A clinical MALDI-ToF Mass spectrometry assay for SARS-CoV-2: Rational design and multi-disciplinary team work. 2020-08-22 .txt text/plain 6845 375 51 Testing limitations, including reagent shortages, remain a bottleneck in the battle to curtail COVID-19 spread in even the wealthiest countries [1, 2] The development of new matrix assisted laser desorption time of flight mass spectrometry (MALDI-ToF MS) diagnostics for SARS-CoV-2 detection is driven by the need for greater diagnostic capacity and alternative applications to complement standard PCR and antibody based diagnostics. Consequently studies where swab samples have been split for simultaneous analysis by RT PCR detection systems of SARS-CoV-2 RNA and by MALDI-ToF mass spectrometry for viral proteins, are compromised [4] . virus grown in vitro and mass spectra of gargle/saliva spiked with culture media from cells infected with SARS-CoV-2: S proteolytic fragments S1 and S2 were seen in all preparations and S2b only in serum free samples. These confirmed PCR-negative gargle samples were analysed by MALDI-ToF mass spectrometry 40 times; the measured peak intensities of which acted as comparative controls to the viral spiked saliva/gargle. ./cache/cord-312996-qzu8pkyt.txt ./txt/cord-312996-qzu8pkyt.txt