Norovirus remains one of the leading causes of foodborne illness worldwide and poses a significant challenge to the shellfish industry. Because oysters, mussels, and clams are filter feeders, they can easily accumulate norovirus particles from contaminated waters. The virus’s high infectivity and resistance to conventional sanitation methods mean that even a single contaminated harvest can lead to widespread outbreaks, costly recalls, and reputational harm. 

At CREM Co Labs, we partner with shellfish producers, processors, and regulatory authorities to identify norovirus contamination early—before products reach consumers. Using our advanced molecular diagnostics platform, we deliver rapid, precise, and internationally compliant results, helping safeguard both public health and industry integrity.

CREM Co Labs provides complete Norovirus detection and quantification services for both shellfish tissue and harvest water samples, utilizing the following validated analytical methods.

I) ISO 15216-2: Microbiology of the food chain – Horizontal method for determination of hepatitis A virus and norovirus using real-time RT-PCR

II) OPFLP-007 (CFIA Official Method): Official Protocol for Laboratory Procedures for Norovirus Detection in Shellfish

Quantitative results: (viral genome copies per gram of tissue or per mL of water)

Dual genogroup detection: (Norovirus GI and GII)

High sensitivity: capable of detecting as few as 10–100 viral copies

Rapid turnaround: results typically within 48 hours

Norovirus-related outbreaks linked to shellfish have led to numerous product recalls across Canada and the United States, costing the seafood industry millions of dollars annually. In response, the Canadian Food Inspection Agency (CFIA) and the U.S. Food and Drug Administration (FDA) continue to enhance surveillance and regulatory requirements aimed at reducing contamination risks and protecting public health.

By partnering with CREM Co Labs, shellfish producers can:

• Implement routine monitoring programs to safeguard harvest areas
• Prevent costly recalls and protect market access (including export eligibility)
• Demonstrate compliance with CFIA, FDA, and international food safety standards
• Build consumer trust through verified safety data

Proactive monitoring is the best defense against norovirus-related recalls. CREM Co Labs provides accurate, accredited, and timely results to help you maintain compliance and consumer safety.

Contact us today to discuss a testing or monitoring plan that fits your operation:

Email: info@cremco.ca
Phone: 905-510-0111
Website: www.cremco.ca