{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T00:14:49Z","timestamp":1792714489521,"version":"4.5.0"},"reference-count":44,"publisher":"American Society for Microbiology","issue":"9","license":[{"start":{"date-parts":[[2025,9,10]],"date-time":"2025-09-10T00:00:00Z","timestamp":1757462400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,9,10]],"date-time":"2025-09-10T00:00:00Z","timestamp":1757462400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["U01AI15208"],"award-info":[{"award-number":["U01AI15208"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100013348","name":"Innosuisse","doi-asserted-by":"crossref","award":["60413.1"],"award-info":[{"award-number":["60413.1"]}],"id":[{"id":"10.13039\/501100013348","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100013348","name":"Innosuisse","doi-asserted-by":"crossref","award":["60413.1"],"award-info":[{"award-number":["60413.1"]}],"id":[{"id":"10.13039\/501100013348","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100013348","name":"Innosuisse","doi-asserted-by":"crossref","award":["60413.1"],"award-info":[{"award-number":["60413.1"]}],"id":[{"id":"10.13039\/501100013348","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Clin Microbiol"],"published-print":{"date-parts":[[2025,9,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title\/>\n                    <jats:p>\n                      Tuberculosis (TB) remains the world\u2019s deadliest infectious disease, with many active cases missed due to challenges in sputum collection. Exhaled breath aerosols (XBA), a major route of\n                      <jats:italic toggle=\"yes\">Mycobacterium tuberculosis<\/jats:italic>\n                      (MTB) transmission, offer a promising non-invasive alternative. This study evaluated the diagnostic accuracy and feasibility of the AveloMask\u2014a novel point-of-care breath aerosol collection kit\u2014for detecting active pulmonary TB using quantitative PCR (qPCR). In a pilot diagnostic accuracy study, 61 symptomatic, adult outpatients in Cape Town, South Africa, wore the mask for 45 min, coughing deeply at the start and end. XBAs were collected on integrated fiber filters transferred into stabilizing buffer via a simple push step and biobanked. XBA\u2019s were batch-analyzed by qPCR targeting the MTB-specific\n                      <jats:italic toggle=\"yes\">IS6110<\/jats:italic>\n                      sequence. Diagnostic accuracy was assessed against sputum Xpert MTB\/RIF Ultra (SXRS) and a composite microbiological reference standard (MRS), including culture. Of the 58 evaluable participants, 59% (34\/58) had confirmed TB. Compared with SXRS, mask qPCR showed 71.0% (95% confidence interval [CI]: 53.4%\u201383.9%) sensitivity and 92.3% (95% CI:75.9%\u201397.9%) specificity. Against MRS, sensitivity was 64.7% (95% CI: 47.9%\u201378.5%) and specificity 91.7% (95% CI: 74.2%\u201397.7%). Sensitivity increased with bacterial load, reaching 100% in sputum with high MTB concentrations. MTB\n                      <jats:italic toggle=\"yes\">IS6110<\/jats:italic>\n                      copy numbers in XBAs were low overall (175 copies [4\u20132,147]), likely due to insufficient DNA recovery or low aerosol bacilli. The mask sampling was well-tolerated by users. The AveloMask Kit shows promising diagnostic accuracy for TB and is feasible for point-of-care use. Further optimization and larger validation studies are warranted.\n                    <\/jats:p>\n                    <jats:sec>\n                      <jats:title>IMPORTANCE<\/jats:title>\n                      <jats:p>Tuberculosis (TB) remains the world\u2019s deadliest infectious disease, yet diagnosis still relies heavily on sputum, which many patients struggle to produce. This study introduces the AveloMask Kit, a user-friendly, non-invasive face mask that captures exhaled aerosols and transfers them into a buffer tube for molecular detection of respiratory tract infections. In a clinical proof-of-principle study, AveloMask detected TB with promising accuracy and demonstrated feasibility in outpatient settings. By offering a non-invasive alternative to sputum, the AveloMask Kit addresses a critical diagnostic gap and could expand access to TB testing, particularly in resource-limited or primary care settings. Its simplicity enables use by minimally trained staff, and its stabilizing buffer allows ambient-temperature transport and biobanking, supporting broader case finding, safer sample collection, and future aerobiology research.<\/jats:p>\n                    <\/jats:sec>\n                  <\/jats:sec>","DOI":"10.1128\/jcm.00546-25","type":"journal-article","created":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T17:49:13Z","timestamp":1755798553000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":7,"title":["AveloMask, a novel breath aerosol collection kit for airborne\n                    <i>Mycobacterium tuberculosis<\/i>\n                    : a proof-of-principle assessment"],"prefix":"10.1128","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0223-6685","authenticated-orcid":true,"given":"Patricia","family":"Risch","sequence":"first","affiliation":[{"name":"Avelo AG","place":["Schlieren, 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