REF 4080241

Gastrointestinal Detection and Monitoring Kit

Qualitative detection of 26 viral, bacterial and parasitic gastrointestinal pathogens from stool, rectal swab and endoscopic wash samples using a pre-loaded Uniqplex plate.

IVD-D CE Qualitative UMS Compatible · Multiplex · 7-mix plate · 26 targets · 5-channel · 96-well · 24 samples × 7 wells

Clinical Use

Qualitative detection of 26 viral, bacterial and parasitic gastrointestinal pathogen targets in nucleic acid extracts from fresh stool, rectal swab or endoscopic wash specimens. Designed for use in acute gastroenteritis, chronic diarrhoea, foodborne outbreak investigation, diarrhoea aetiology in immunocompromised patients and nosocomial GI infection investigations.

This test is designed for qualitative detection. Cq values may be reported as supplementary information but must not be interpreted as a quantitative load.

Test Design

Targets26 pathogens · 7 multiplex wells (A–G)
Internal controlRPP-30 (HEX channel in every well)
FormatPre-loaded plate · 5-channel readout (FAM, HEX, ROX, Cy5, Cy5.5)
Reaction volume10 µL total · 4 µL template per well × 7 wells per sample
Cycle time~50 min
Cut-offCq < 38, sigmoidal · 200 RFU threshold

Mix → Channel → Target Mapping

Mix (well)FAMHEXROXCy5Cy5.5
Mix 1 (A)Adenovirus F40/41Internal ControlBacillus cereusNorovirus GI/GII
Mix 2 (B)Rotavirus AInternal ControlCampylobacterAstrovirusHelicobacter pylori
Mix 3 (C)CryptosporidiumInternal ControlCyclospora cayetanensisEntamoeba histolyticaGiardia lamblia
Mix 4 (D)Vibrio choleraeInternal ControlVibrio (parahaemolyticus / vulnificus)SalmonellaYersinia enterocolitica
Mix 5 (E)STEC stx1 / stx2Internal ControlEAECEPECPlesiomonas shigelloides
Mix 6 (F)Sapovirus (I, II, IV, V)Internal ControlShigella / EIECETEC lt / st
Mix 7 (G)C. difficile toxin AInternal ControlC. difficile toxin BC. difficile binary toxin AC. difficile binary toxin B

C. difficile interpretation (Mix 7): tcdA / tcdB positivity is consistent with toxigenic C. difficile; cdtA / cdtB positivity indicates binary toxin-producing strains (e.g. NAP1/B1/027) and may be associated with more severe disease. STEC (Mix 5 FAM): stx1 and stx2 are read on a combined channel; subtype or serotype discrimination may require an orthogonal test. Sapovirus (Mix 6 FAM): covers genogroups I, II, IV, and V; genogroup III (bovine) is not detected. Vibrio mix (Mix 4 ROX): V. parahaemolyticus and V. vulnificus share a channel; a type-specific test should be considered if discrimination is required. Mix 1 and Mix 6 Cy5.5: not used for any target.

Kit Contents (2 plates / 24 samples)

Uniqplex Plate2 plates · 7 mixes × 12 columns · pre-loaded with oligo and enzyme mix, pierceable foil-sealed
NTC1 × 1000 µL · negative template control
PC1 × 120 µL · reagent stability positive control
Pierceable adhesive seal2 sheets · applied after sample loading

Break off only the column(s) you need; return the remainder to −20 °C with the foil intact. Recommended plate mixing: Biosan CVP-2 (SMS program, Spin 800 RPM × 10 s + Mix 400 RPM × 30 s, 2 cycles).

Validated Instruments

  • Bio-Rad CFX96 Touch
  • HiMedia InstaQ96
  • Applied Biosystems QuantStudio 5 (Cy5.5 dye calibration required before first use)
  • Qiagen Rotor-Gene Q 5plex

Plate preparation workflow differs depending on instrument optics (bottom- vs top-read); see IFU §7.1.

Performance

Typical LoD is 100–500 copies/mL for RNA targets and 50–500 copies/mL for DNA targets. Target-based LoD values and cross-reactivity data are documented in the performance evaluation report.

Interpretation notes: Four C. difficile targets are read in parallel (tcdA, tcdB, cdtA, cdtB); binary toxin positivity indicates high-severity strains such as NAP1/B1/027. STEC stx1/stx2 is reported on a combined FAM channel; subtyping requires additional testing. The Sapovirus target covers genogroups I/II/IV/V (genogroup III is bovine and not detected). V. parahaemolyticus and V. vulnificus are co-read on the ROX channel; type-specific testing is required for discrimination.

Storage

Before use−20 °C · until expiry date
After opening−20 °C · 4 months (including freeze-thaw)
Freeze-thaw cycleMaximum 3

Regulatory

Class C IVD device. CE marked under the transitional provisions of Regulation (EU) 2017/746. The conformity assessment process under (EU) 2017/746 (IVDR) is ongoing. TİTCK registered. For in vitro diagnostic use only — for laboratory and professional use.