The process of identifying and diagnosing a bacterial infection by detecting and analyzing bacteria in a patient's body.
From bacteria + diagnosis (from Greek 'dia' meaning through + 'gnosis' meaning knowledge). This clinical term emerged in the late 1800s with the development of modern microbiology techniques.
Before rapid bacteriodiagnosis techniques like DNA testing, doctors had to culture bacteria for days or weeks—now a sample can be identified in hours, which is life-saving in critical infections.
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