This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:


peer-reviewed publication

reputable news agency


Breath analysis shows promise for COVID-19 detection

Breath analysis shows promise for COVID-19 detection

Breath analysis seems promising for COVID-19 detection, according to a study published online Feb. 28 in JAMA Network Open.

Ruchi Sharma, Ph.D., from the University of Michigan in Ann Arbor, and colleagues examined the diagnostic accuracies of for detecting patients with COVID-19 during periods of delta and omicron prevalence between April 2021 and May 2022. A total of 205 from 167 adults were analyzed; 77 patients had COVID-19 and 91 had non-COVID-19 illness.

Overall, 41 samples were from patients infected with delta or other variants in 2021 and 53 samples were from patients infected with the in 2022. The researchers found that four (VOC) biomarkers differentiated between COVID-19 (delta and other 2021 variants) and non-COVID-19 illness with 94.7 percent accuracy. When these biomarkers were applied to the omicron variant, accuracy dropped to 82.1 percent. Four new VOC biomarkers could differentiate the omicron variant and non-COVID-19 illness with 90.9 percent accuracy. Omicron could be distinguished from earlier variants with accuracy of 91.5 percent and COVID-19 (all variants) from non-COVID-19 illness with 90.2 percent accuracy using breath analysis.

"When the entire pattern library and models were combined, the overall performance on all participants attained accuracies that could potentially make breath analysis a viable and rapid testing alternative," the authors write.

Several authors disclosed financial ties to the ; one author holds a patent for a component of the portable gas chromatography device used in the study.

More information: Ruchi Sharma et al, Portable Breath-Based Volatile Organic Compound Monitoring for the Detection of COVID-19 During the Circulation of the SARS-CoV-2 Delta Variant and the Transition to the SARS-CoV-2 Omicron Variant, JAMA Network Open (2023). DOI: 10.1001/jamanetworkopen.2023.0982

Journal information: JAMA Network Open

Copyright © 2023 HealthDay. All rights reserved.

Citation: Breath analysis shows promise for COVID-19 detection (2023, March 1) retrieved 25 July 2024 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Long COVID risk less from omicron variant than from delta


Feedback to editors