Journal
ISCIENCE
Volume 24, Issue 8, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.isci.2021.102851
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This study demonstrates that volatile organic compounds (VOCs) in blood serum can accurately distinguish COVID-19 patients, providing a new method for disease diagnosis. The analysis of more than 100 different VOCs showed that the pattern of abundances of 17 compounds could identify COVID-19 from non-COVID with an accuracy of 89%. The combination of GC/MS analysis and gas sensor array achieved an accuracy of 89% in distinguishing COVID-19 patients.
Volatolomics is gaining consideration as a viable approach to diagnose several diseases, and it also shows promising results to discriminate COVID-19 patients via breath analysis. This paper extends the study of the relationship between volatile compounds (VOCs) and COVID-19 to blood serum. Blood samples were collected from subjects recruited at the emergency department of a large public hospital. The VOCs were analyzed with a gas chromatography mass spectrometer (GC/MS). GC/MS data show that in more than 100 different VOCs, the pattern of abundances of 17 compounds identifies COVID-19 from non-COVID with an accuracy of 89% (sensitivity 94% and specificity 83%). GC/MS analysis was complemented by an array of gas sensors whose data achieved an accuracy of 89% (sensitivity 94% and specificity 80%).
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