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Important Holiday Shipping Schedule Update


ATCC will be closed Wednesday, December 24, 2025 to Thursday, January 1, 2026. Please be advised  you can still submit orders for products during this time, but shipping will resume on Friday, January 2, 2026.


To ensure shipping before the ATCC holiday closing period, please reference the shipping schedule below:


  • Last shipping day for Domestic orders is Friday, December 19, 2025 (Room temperature items shipping only as no frozen item shipments on Fridays. Frozen/ dry ice shipments resumes January 2, 2026).

  • Last shipping day for International orders is Friday, December 12, 2025.

  • Shipping resumes January 2, 2026 for orders submitted after December 19, 2025.

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Applications for Microbe Products

Tiny beads of pink and purple bacteria in MacConkey growth medium.

Help your microbes divide and conquer

You can’t see them, but microbes are everywhere! Viruses, fungi, yeasts, protozoa, algae, bacteria, and archaea are truly the proverbial “big things come in small packages”—without these essential organisms, life as we know it wouldn’t exist.

As researchers, not only do we know how valuable microorganisms are with regard to human health and disease, but for finding solutions to numerous problems. That’s why ATCC scientists have collected, authenticated, and preserved organisms for more than a century to ensure that researchers have access to the strains needed to develop vaccines, clean up oil spills, ensure healthier food and water, find treatments for infectious diseases, and develop products to keep our homes clean.

Explore our vast microbiology collection!

Rows of vials sealed with silver and purple caps.

Vaccine Development Tools

The continual spread of deadly pathogens along with the dwindling supply of antimicrobial treatments necessitates the development of effective prevention methods. The development of novel vaccines is held back by the incredible variability between microbial strains and the limitations in the vaccine manufacturing process. That’s why we are committed to providing researchers with the virus-producing cell lines, pathogenic microbial strains, and purified pneumococcal polysaccharides needed to support vaccine research and development.

Get Vaccine Products

Microbes for research & development applications

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