APHA Scientific > Services > Laboratory Testing > Antimicrobial resistance testing

Antimicrobial resistance testing

Our tests are performed under ISO 17025. This ensures your data is of the highest standard of quality, impartiality and credibility for your customers and regulatory authorities.

Testing services

APHA has centres of expertise dedicated to antimicrobial testing and anaerobic work. Our techniques are continuously updated to ensure they are in keeping with advances in the human field as well as veterinary specialisation.

We routinely offer several minimum inhibition concentration (MIC) assays:

Agar plate and broth dilution MICs

Disc diffusion sensitivity by zone size

Sensititre MIC

All these conform to British Society for Antimicrobial Chemotherapy (BSAC) or Clinical and Laboratory Standards Institute (CLSI) standards.

We can provide quotes for other methodologies according to your requirements.

Bacterial isolates

To support these services, We maintain over 29,000 recent and historic bacterial isolates of large animal pathogens. This extensive collection includes both common and less common anaerobes from all livestock species.

For more information on our culture collection service, please see our pages on culture collection.

Our news

Keep up to date with the latest news and information from APHA Scientific

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AHNTI EU 2026 in London

Meet our Business Development team at AHNTI EU 2026, where 850+ leaders are shaping the future of animal health.

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Order Your VETQAS 2026–27 Proficiency Testing Schemes

We’re pleased to announce the release of our updated price lists for the 2026–2027 contract year.

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Visit APHA Scientific at AAVLD – Booth 305

We’re exhibiting at the AAVLD/USAHA Annual Meeting and ready to connect—stop by Booth 305 to say hello!

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APHA Scientific at WVPAC 2025

Our team had a fantastic time at WVPAC 2025, connecting with poultry health professionals from around the world and sharing insights across the industry.

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Discover More About APHA Scientific’s Work Behind the Scenes

Explore how our teams contribute to animal and public health through research, diagnostics, and innovation in our latest blog post.

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Welcome to Our New APHA Scientific Website

We’re excited to share our new and improved APHA Scientific website. This project reflects our commitment to providing a more modern, accessible, and user-friendly platform to our global commercial customer base.

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APHA Scientific at WAVLD 2025: Advancing Veterinary Diagnostics Together

We were pleased to attend the World Association of Veterinary Laboratory Diagnosticians (WAVLD) 2025 conference in Calgary, Canada, as a Silver Sponsor.

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APHA Scientific – Launch of PT-LIMS: Our New Laboratory Information Management System

We’re excited to announce the launch of PT-LIMS, our improved Proficiency Testing Laboratory Information Management System, now live for all registered customers.

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