CRP – MxA combo test
Quick Differentiation of Infections with the CRP/MxA Combo Test The EZER CRP/MxA Combo Rapid Test enables fast detection of respiratory infections and helps distinguish between viral and bacterial causes. Using a simple blood sample, the test qualitatively measures two crucial markers: CRP (C-reactive protein) and MxA (Myxovirus resistance protein A). MxA increases rapidly in viral infections, while CRP rises during bacterial infections. Since their response patterns differ, combining these markers in one test allows clinicians to identify the infection type more accurately, even when symptoms overlap. This dual-biomarker strategy reduces diagnostic uncertainty and improves treatment decisions, especially in urgent care and general practice. By helping avoid unnecessary antibiotic use, it also supports better antibiotic stewardship. For accurate, fast, and efficient diagnosis of respiratory infections using CRP, the CRP/MxA Combo Rapid Test is an essential tool for modern clinical practice.
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This kit in detail
Quick Differentiation of Infections with the CRP/MxA Combo Test
The EZER CRP/MxA Combo Rapid Test enables fast detection of respiratory infections and helps distinguish between viral and bacterial causes. Using a simple blood sample, the test qualitatively measures two crucial markers: CRP (C-reactive protein) and MxA (Myxovirus resistance protein A).
MxA increases rapidly in viral infections, while CRP rises during bacterial infections. Since their response patterns differ, combining these markers in one test allows clinicians to identify the infection type more accurately, even when symptoms overlap.
This dual-biomarker strategy reduces diagnostic uncertainty and improves treatment decisions, especially in urgent care and general practice. By helping avoid unnecessary antibiotic use, it also supports better antibiotic stewardship.
For accurate, fast, and efficient diagnosis of respiratory infections using CRP, the CRP/MxA Combo Rapid Test is an essential tool for modern clinical practice.
- Rapidly identifies viral or bacterial respiratory infections
- Enables smarter, targeted antibiotic decisions
- Detects CRP and MxA with one test
- Improves early diagnosis and patient outcomes
Intended Use
The EZER CRP/MxA Combo Rapid Test is a lateral flow chromatographic immunoassay intended for the qualitative detection of CRP (C-reactive protein) and Myxovirus resistance protein A (MxA) in human whole blood. It supports healthcare professionals in determining whether a patient’s infection is of viral or bacterial origin. Note: diagnosis should always include clinical assessment and not rely solely on test results. This product is for in vitro diagnostic use only.
Background on Acute Respiratory Infections
Acute respiratory infections (ARIs) affect around 20% of the population each year, including conditions like the common cold, flu, bronchitis, pharyngitis, and sinus infections. Due to overlapping symptoms, it’s often difficult for clinicians to differentiate between viral and bacterial infections based on symptoms alone. This uncertainty can lead to unnecessary antibiotic prescriptions, contributing to antimicrobial resistance.
The Role of MxA in Viral Infections
Myxovirus resistance protein A (MxA) is an interferon-induced GTPase that responds specifically to viral infections. In healthy individuals, MxA levels are typically below 15 ng/mL. When a viral infection occurs, MxA levels:
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Increase rapidly within 1–2 hours
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Maintain elevated presence for over 2 days (half-life ≈ 2.3 days)
These properties make MxA a strong and reliable biomarker for acute viral infection detection.
Understanding CRP as a Bacterial Marker
C-reactive protein (CRP) is a general inflammatory biomarker. Under healthy conditions, CRP levels are extremely low. During a bacterial infection, however:
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Levels rise within 4–6 hours
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Peak at around 36 hours
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Are minimally affected by viral infections
This makes CRP a valuable marker for identifying bacterial causes of respiratory illness.
Combining CRP and MxA for Accurate Diagnosis
The CRP/MxA Combo Rapid Test allows for the simultaneous detection of both biomarkers, providing a dual-indicator approach to infection diagnosis. This enables:
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Better identification of clinically significant ARIs
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Fast differentiation between viral and bacterial infections
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More accurate, timely clinical decisions
Clinical Benefits of the CRP/MxA Combo Test
By using both CRP and MxA markers in one rapid test, healthcare providers can:
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Improve diagnostic accuracy
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Avoid unnecessary antibiotics
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Detect infections early
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Enhance overall patient care
Datasheets and regulatory documentation
Everything your quality team needs for evaluation and procurement.
Frequently paired with this kit
Other assays and instruments lab teams add alongside the CRP - MxA combo test.
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