Bio-Rad

Geenius™ HIV 1/2 & HCV System

Rapid, automated supplemental assay system for confirmation of HIV-1, HIV-2, and Hepatitis C antibodies — objective results with no manual interpretation required.

Key Features

Automated Confirmatory Serology — HIV & HCV

The Bio-Rad Geenius™ system pairs single-use microfluidic assay cassettes with the Geenius Reader for fully automated, objective result interpretation. Available for both HIV 1/2 and HCV confirmation — eliminating subjective manual reading and the need to outsource supplemental testing.

HIV 1/2 HCV

Automated reader — objective, reproducible result interpretation every time
HIV results in approximately 30 minutes; HCV results in 20 minutes
Differentiates HIV-1 from HIV-2 on a single cassette
Confirms and resolves reactive HIV & HCV screening results in-house
Built-in procedural control on every cassette — no separate control run needed
Accepts serum, plasma, and whole blood samples
Room temperature storage (2–30°C) — no refrigeration required
Single-cassette, on-demand format — no batch testing delays

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Test Menu

What the Geenius System Tests

Confirmatory serology for HIV and Hepatitis C — meeting international diagnostic algorithm requirements.

HIV-1 Antibody Confirmation

Detects HIV-1 antibodies against gp160, gp41, p31, and p24 antigens on a single strip

HIV-2 Antibody Confirmation

Detects HIV-2 antibodies against gp140 and gp36 envelope antigens simultaneously

HIV-1 / HIV-2 Differentiation

Clearly distinguishes HIV-1 from HIV-2 infection — critical for appropriate clinical management

HCV Antibody Confirmation

Confirms anti-HCV antibodies in serum, plasma, or venous whole blood — results in 20 minutes

Reactive Screen Confirmation

Resolves reactive results from 4th-generation HIV and HCV antibody screening assays in-house

Indeterminate Result Resolution

Clarifies indeterminate Western blot and supplemental assay results with objective band reading

Blood Donor Screening Confirmation

Suitable for confirming reactive donations — used in transfusion centre supplemental testing workflows

Procedural & Internal Control

Every cassette includes a built-in control line validating proper sample flow and test performance

Permanent Digital Result Record

Geenius Reader captures and stores a digital image of each cassette — uploadable to LIS

Technical Specifications

Geenius Specifications

Assay Type	Microfluidic immunochromatographic cassette (lateral flow)
HIV Result Time	Approximately 30 minutes
HCV Result Time	Approximately 20 minutes
Sample Types	Serum, EDTA plasma, heparin plasma, venous whole blood
Sample Volume	10 µL per test
HIV-1 Antigens Detected	gp160, gp41, p31, p24
HIV-2 Antigens Detected	gp140, gp36
Reader	Geenius Reader (automated cassette scanning & interpretation)
Storage Temperature	2–30°C (room temperature — no refrigeration required)
Regulatory Status	CE marked; WHO prequalified (HIV 1/2)
Format	Single-use cassettes — on-demand, no batch testing required