RT info:eu-repo/semantics/article T1 Detection of SARS-CoV-2 Infection in Human Nasopharyngeal Samples by Combining MALDI-TOF MS and Artificial Intelligence (doi: 10.3389/fmed.2021.661358) A1 Peña Méndez, Eladia María A1 Deulofeu, Meritxell A1 García Cuesta, Esteban A1 Conde, José Elías A1 Jiménez Romero, Orlando A1 Verdú, Enrique A1 Serrando, María Teresa A1 Salvadó, Victoria A1 Boadas Vaello, Pere K1 MALDI-TOF MS analysis K1 Machine learning K1 SARS-CoV-2 K1 NP samples K1 Viral transport media AB The high infectivity of SARS-CoV-2 makes it essential to develop a rapid and accuratediagnostic test so that carriers can be isolated at an early stage. Viral RNA innasopharyngeal samples by RT-PCR is currently considered the reference methodalthough it is not recognized as a strong gold standard due to certain drawbacks. Herewe develop a methodology combining the analysis of from human nasopharyngeal (NP)samples by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry(MALDI-TOF MS) with the use of machine learning (ML). A total of 236 NP samplescollected in two different viral transport media were analyzed with minimal samplepreparation and the subsequent mass spectra data was used to build different MLmodels with two different techniques. The bestmodel showed high performance in termsof accuracy, sensitivity and specificity, in all cases reaching values higher than 90%. Ourresults suggest that the analysis of NP samples by MALDI-TOF MS and ML is a simple,safe, fast and economic diagnostic test for COVID-19. SN 2296-858X YR 2021 FD 2021 LK http://riull.ull.es/xmlui/handle/915/35188 UL http://riull.ull.es/xmlui/handle/915/35188 LA en DS Repositorio institucional de la Universidad de La Laguna RD 22-dic-2024