{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T05:17:56Z","timestamp":1787807876762,"version":"build-2784847793"},"reference-count":20,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T00:00:00Z","timestamp":1787788800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cell. Infect. Microbiol."],"abstract":"<jats:p>The laboratory diagnosis of microbial infections has undergone a profound transformation over the past century, evolving from classical phenotypic methods to molecular genetic approaches and now toward ultra-sensitive molecular phenotyping. While this progression is often described as linear, a closer examination reveals a cyclical pattern: an initial reliance on observable biological function, followed by a shift toward genetic abstraction, and, more recently, a return to phenotypic measurement at unprecedented molecular resolution. This \u201cdiagnostic circle\u201d reflects a deeper epistemological trajectory shared across multiple scientific disciplines, wherein knowledge alternates between direct observation and abstraction before converging into integrative, high-resolution frameworks. In this Perspective, we trace the evolution of diagnostic microbiology through three major phases - classical phenotypic methods, molecular\/genetic diagnostics, and emerging ultra-sensitive phenotypic technologies - and argue that the field is entering a new era in which functional biology can be measured directly with molecular precision. We propose that this transition represents not merely technological progress but a conceptual shift toward restoring biological context, with significant implications for clinical decision-making, antimicrobial stewardship, and the future of precision infectious disease diagnostics.<\/jats:p>","DOI":"10.3389\/fcimb.2026.1922970","type":"journal-article","created":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T04:26:57Z","timestamp":1787804817000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["The spiral evolution of techniques for the laboratory diagnosis of microbial infections"],"prefix":"10.3389","volume":"16","author":[{"given":"Yi-Wei","family":"Tang","sequence":"first","affiliation":[{"name":"School of Public Health, Chongqing Medical University","place":["Chongqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nahed","family":"Ismail","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Illinois at Chicago","place":["Chicago, IL, United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodolfo","family":"Garc\u00eda-Contreras","sequence":"additional","affiliation":[{"name":"Department of Microbiology and Parasitology, Faculty of Medicine, Universidad Nacional Aut\u00f3noma de M\u00e9xico","place":["Mexico City, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,8,27]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"7304","DOI":"10.1007\/s12602-026-10928-9","article-title":"Antimicrobial armageddon: the professional guide to conquering antibiotic resistance","volume":"18","author":"AlJerf","year":"2026","journal-title":"Probiotics Antimicrob. 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