Within product-type market taxonomy, qPCR assays hold 71 % share, valued for their quantitative cycle thresholds that correlate with toxin gene burden and facilitate outbreak strain discrimination. These assays are segmented into open-platform chemistries (45 %), preferred by large hospital networks that already own thermocyclers, and closed-platform cartridges (26 %), which lock customers into integrated systems yet deliver <30 min time-to-result. Loop-mediated isothermal amplification (LAMP) kits claim 19 %, positioned as energy-saving alternatives for resource-limited labs since they eliminate thermal cycling; however, lower multiplexing capacity restricts them to screening algorithms rather than definitive diagnosis. TMA (transcription-mediated amplification) and CRISPR-based fluorescence products together account for 10 %, currently niche but growing 9–11 % CAGR as manufacturers exploit their tolerance for crude stool extracts, reducing DNA extraction labor. The final distinction lies in lyophilized vs. liquid reagent formats: lyophilized extends shelf life to 18 months, critical for reference-lab bulk purchasing, whereas liquid reagents reduce reconstitution error, a decisive factor for accreditation under ISO 15189.