Miriam Guest is the Senior Principal Scientific Advisor of Microbial Solutions. She recently joined the organization after 20 years with AstraZeneca. In her role, she provides scientific governance and strategic direction.

She has extensive experience in the pharmaceutical Industry leading contamination control strategies for drug development projects as well as supporting internal and external manufacturers to provide microbial quality assurance of drug products. In her previous role, she led the Global Microbiology Forum, connecting over 25 microbiology labs across the world, to drive standardization and quality improvement initiatives.

Miriam provides senior-level guidance to drive innovation for Charles River’s microbiology testing solutions. In addition, she sits on the British Pharmacopoeia panel of experts in microbiology, the European Pharmaceutical Review’s Editorial Advisory Board and is an active committee member of Pharmig, the Pharmaceutical Microbiology Interest Group, and historically has supported initiatives such as RDPAC on harmonization projects in China.

With over two decades in pharmaceutical microbiology across both drug product manufacturing and clinical development, Miriam offers extensive expertise spanning quality control laboratories, formulation research and GMP production environments. Her perspectives are further enriched through regulatory interactions around designing and authoring robust control strategies for complex supply chains.

Miriam has also spent time as facility microbiologist in sterile manufacturing, on a multi-product, clinical trial production facility, providing oversight and ownership of environmental monitoring, water systems, sterilizers and aseptic simulation trials.