Helping Our Global Partners Respond to the SARS-COV-2 Pandemic Is Our Number One Priority

BioLegend has committed its capabilities, resources, and immunology expertise to work that directly addresses the SARS-CoV-2 crisis. With the first reports of COVID-19, we took immediate action to keep our employees safe, maintain essential operations, and accelerate the development of key products to ensure our partners have the tools they need to survey, treat, and monitor the outbreak within our communities. We have ramped-up and expanded production of our multiplex cytokine/chemokine detection kits (LEGENDplex™) and flow cytometry reagents designed to monitor the immune status of COVID-19 patients. We are also developing new antibody-oligonucleotide reagents (TotalSeq™ antibody panels for proteogenomics) optimized to provide a comprehensive understanding of pulmonary immune responses to the coronavirus.


We are working closely with experts across the scientific and medical communities to advance testing and treatment. We are committed to see this through together! 


Applied Research – BioLegend is partnering with top East Coast Medical Research Institutes using TotalSeq antibodies to analyze immune responses to SARS-CoV-2 at a single-cell RNA and protein level in the lungs of over 100 infected individuals.


Diagnostic Testing – Investigators in Asia are using BioLegend antibodies to develop SARS-CoV-2 immunoglobulin assays. By measuring the levels of these antibodies, investigators are able to identify previously infected persons and monitor antibody production levels, regardless of whether the individual is still infected or has recovered from the disease.


Clinical Drug Trials – Researchers and clinicians in New York, France and Spain are using LEGENDplex kits and BioLegend’s Flow Cytometry antibodies to monitor 'cytokine storm' and immune responses of COVID-19 patients receiving novel treatments in immunotherapy and multidrug clinical trials.


Vaccine Trials – National Labs are using TotalSeq, soluble HLA monomers and tetramers (Flex-T™), conjugated antibodies, and custom antibodies to characterize the immune response to candidate SARS-CoV-2 vaccines which are currently in human testing.


We want to hear from you


BioLegend is collaborating with researchers and clinicians just like you.  Whether you are in the lab, working remotely, or finding new ways to work, we are here to help.  Tell us how we can partner with you to fight COVID-19 by submitting your information on our Tools for SARS-Cov-2 Research page. 

Frequently Asked Questions


Q1. Are there any anticipated disruptions to BioLegend’s delivery of its products?
No. At this time, we are operating normally and do not expect disruptions in shipping our products. We are constantly monitoring the situation with the goal of continuing to work with our customers to deliver products while ensuring the safety of our employees.


Q2. Where are BioLegend’s products manufactured?
All BioLegend products are manufactured in the United States, and we do not anticipate disruption of manufacturing at this time.


Q3. Where does BioLegend obtain the components used to make BioLegend products?
A vast majority of the components used to make BioLegend products are sourced in the USA, and we do not anticipate supply issues at this time.


Q4. Who should I contact if I anticipate any disruption to my business such as the ability to receive shipments, ordering, etc.?
Please contact your local FAS or Distributor if you anticipate any issues. We will work with you to provide support and ensure the best customer solution possible.


Q5. Where are BioLegend’s distribution centers?
BioLegend has three warehouses: USA-San Diego, CA, Netherlands-Amsterdam, and United Kingdom-London. All distribution centers are conducting normal business operations. As an extra precaution, many of our distribution partners around the world will also hold stock at levels advised by BioLegend.


Q6. What is BioLegend’s contingency plan for fulfilling orders?
BioLegend has three warehouses: USA-San Diego, CA, Netherlands-Amsterdam, and United Kingdom-London. Each site will serve designated regions. In case of an emergency, Customer Service in San Diego, CA ( or email will take all orders and coordinate shipping.

We continue to assess this dynamic situation worldwide, and we are prepared to entertain various staffing options, combined with cyclic decontamination, to minimize any product delivery disruptions. Throughout, we will always prioritize the safety of our employees. For BioLegend customers not directly served by the listed warehouses, many of our distribution partners around the world also hold stock at levels advised by BioLegend.

If you need additional assurances of product availability, please contact your local FAS or Distributor so we can work together to continue normal business operations.


Q7. Are there specific disruptions or new protocols in China?
Dakewe, our distributor in China, has resumed business as of late February. We will continue to provide products to customers in China through this partnership as long as operations in the USA remain undisrupted.


Q8. Are there specific disruptions or new protocols in Europe?
Both our United Kingdom and Netherlands facilities are operating as normal. In the event that either or both facilities become inoperable, our flagship operation in San Diego, CA, USA is fully capable of stepping in to support all European customer requirements.


Q9. Are there specific disruptions or new protocols in North America?
Fulfilling customer orders is our first priority in any situation. The San Diego warehouse is operating as normal, and we are prepared to focus on order fulfillment under any reduced resource scenarios. Please contact Customer Service ( or your FAS for any concerns regarding your orders.


Q10. How do I notify BioLegend if we will not be able to receive pending orders?
For information or questions regarding orders, please reach out to your local FAS or Distributor or call Customer Service at 1-877-Bio-Legend (1-877-246-5343) or email to discuss potential delivery options.


Q11. Can I receive my inventory currently stocked at BioLegend sooner than scheduled?
Please contact your local FAS or Distributor for available stock and shipping options.


Q12. Should I stock up on my orders now in case of a future emergency?
Given the dynamic nature of the situation, we cannot advise whether you should stock up. Please contact your local BioLegend FAS to discuss best options.


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