Welcome to BEI Resources

Welcome to BEI Resources

At BEI Resources, we're the leading source for high quality cultures and reagents for microbiology and infectious diseases research. As you explore the benefits we offer, you will see how BEI Resources can serve as a catalyst for your research efforts worldwide.  BEI Resources materials are provided at no cost to registered researchers (additional shipping charges may apply).

We'll take care of the details - so you can focus on your research.

Welcome to BEI Resources
SARS-CoV-2 and currently available Coronavirus strains and reagents

SARS-CoV-2 and currently available Coronavirus strains and reagents     

Click here for available products, information and FAQs regarding the SARS-CoV-2.  For any questions regarding BEI Resources and SARS-CoV-2 materials, please contact 

SARS-CoV-2 and currently available Coronavirus strains and reagents
Link to NIAID Data Ecosystem Discovery Portal

The NIAID Data Ecosystem Discovery Portal is Now Live!

The NIAID Data Ecosystem Discovery Portal ( allows researchers to search simultaneously across millions of publicly available datasets to find infectious and immune-mediated disease data for reanalysis and accelerates the work of researchers, leading to faster development of diagnostics, therapeutics, and vaccines.


The Discovery Portal can be used to:

  • Search across repositories to quickly find datasets that you didn’t know were available to bring other dimensions into your analyses.
  • Track research across funding programs or specific scientific areas.
The NIAID Data Ecosystem Discovery Portal is Now Live!
Image of Mpox virus

Monkeypox virus Reagents Available

Now available Mpox virus, isolate hMPXV/USA/MA001/2022 (NR-58622), from the current outbreak. For a complete listing of available of Mpox reagents and other Orthopox virus related reagents, click here.


Mpox virus Reagents Available
<a href=20 Years of BEI Resources" />

20 Years of BEI Resources

BEI Resources is celebrating its 20th year providing unique reagents supporting infectious disease research to the global scientific        community!

BEI Arthropod Vectors Webinar (April 21, 2023)

The Role of BEI Resources in the Support of Arthropod Vector Research Webinar

Vector-borne microbial pathogens have evolved a series of strategies to evade the immune system and establish infections in the mammalian host. In this setting, BEI Resources functions as a centralized bioresource for accessibility of reference strains of arthropod vectors to the global public health scientific community. The BEI Vector Resources program currently provides over 60 colonies of live mosquitoes as well as Ixodid and soft ticks, sandflies, black flies    and triatomines. 


2023 BEI Arthropod Vectors Webinar_Part 1
<a href=SARS-CoV-2 Isolates and Reagents" />

SARS-CoV-2 Isolates and Reagents

The BEI Resources catalog contains more than 380 SARS-CoV-2 isolates and unique reagents representing ten Variants Being Monitored and the Variant of Concern Omicron. Recent additions include monoclonal antibodies to SARS-CoV-2 Spike glycoprotein receptor binding domain (RBD) and an isolate of lineage BA.5, now the dominant lineage in the United States...more.


SARS-CoV-2 Isolates and Reagents
<a href=Monoclonal Antibodies against SARS-CoV-2 Full-Length S Protein" />

Monoclonal Antibodies against SARS-CoV-2 Full-Length S Protein

A panel of monoclonal antibodies against a purified, recombinant, full-length trimeric and stabilized version of recombinant S glycoprotein protein (190 kDa), expressed in Expi293F cells, is now available.

<a href=Klebsiella pneumoniae Multidrug-Resistant Diversity Panel" />

Klebsiella pneumoniae Multidrug-Resistant Diversity Panel

The K. pneumoniae MRSN diversity panel is available as individual isolates (BEI Resources NR-55504 through NR-55603) and the complete panel of all 100 isolates (NR-55604). MRSN Diversity Panels are also available in the BEI Resources catalog for Acinetobacter baumannii and Pseudomonas aeruginosa.


K. pneumoniae Multidrug-Resistant Diversity Panel
<a href=Global Priority Superbugs " />

Global Priority Superbugs

Access to priority pathogens is critical to the research and development of novel diagnostics and antibiotics and optimization of current therapies to address increasing rates of antibacterial resistance. BEI Resources supports these efforts through the availability of top pathogens assembled into the Global Priority Superbugs collection.

Light microscopic image of Giemsa-stained human red blood cells infected with MRA-1316

Hidden Phenotypic and Genetic Variation in Malaria Isolates

As part of BEI Resources’ Enhanced Authentication Initiative, single parasite lineages were cloned from three isolates confirmed to harbor multiple parasite lineages....more.


Hidden Phenotypic and Genetic Variation in Malaria Isolates
<a href=Enterovirus EV-D68 Cell Line Screening" />

Enterovirus EV-D68 Cell Line Screening

In support of Enterovirus-D68 (EV-D68) vaccine development research, BEI Resources has performed initial screening of cell lines amenable for human vaccine development.  Click here for more information.

Enterovirus EV-D68 Cell Line Screening
Not Seeing What You are Looking For?

Not Seeing What You are Looking For?

BEI Resources is continually building a comprehensive repository of microbiological and emerging disease related organisms and reagents. Suggestions for materials to be added to our repository are always welcome. Click here to tell us what you don't see in our catalog!

Not Seeing What You are Looking For?
TEM of HIV-1 virus particles (red/gold) budding and replicating from a segment of a chronically infected H9 cell (green)

HIV Dependency CRISPR Guide Library

Human immunodeficiency virus type 1 (HIV-1) must hijack host cellular machinery to establish infection successfully. These host proteins, known as dependency factors, play roles in every stage of the HIV-1 life cycle. The HIV Dependency CRISPR Guide Library, now available from BEI Resources as HRP-20293, was constructed to identify these HIV dependency factors.

Microscopic image of NR-59103 cultured in vitro in human red blood cells. (BEI Resources)

In vitro Babesia duncani Strain Now Available

Babesia duncani has emerged as an interesting apicomplexan parasite and a possible model to study intraerythrocytic parasitism. This parasite is closely related to Babesia microti, the main causative agent of human babesiosis, as well as Plasmodium falciparum, the causative agent of human malaria.

PCR showing the ~ 300-base pair amplicon of the hrp2 gene present in MRA-1330 and the lack of bands in MRA-1331 and MRA-1332. (BEI Resources)

HRP-Deleted Malaria Parasites

Rapid diagnostic tests (RDTs) based on the histidine-rich proteins 2 and 3 (HRP2 and HRP3) of the malaria parasite play a vital role in malaria diagnosis and have replaced microscopy as the laboratory confirmatory tool for clinical diagnosis in most malaria-endemic countries. However, natural deletions of hrp2 and hrp3 genes encoding these proteins can undermine the practical utility of current RDTs, which cannot detect HRP-deleted parasites, leading to false negatives.

Three influenza A (H5N1/bird flu) virus particles (rod-shaped; purple)

Reagents Supporting Avian Influenza Research

A multi-state outbreak of Highly Pathogenic Avian Influenza (HPAI) A(H5N1) bird flu in dairy cows was initially reported on March 25, 2024. This marks the first time that these avian influenza viruses have been detected in cattle.

  • HIV Reagent Program
    HIV Reagent Program
  • NIAID Research Resources
    NIAID Research Resources
  • How to Register
    How to Register
  • How to order
    How to Order
  • How to Cite
    How to Cite
  • Quick Order Logo
    Quick Order
  • Forms Logo
  • Publications
  • Suggest A Reagent Logo
    Suggest A Reagent
  • Schedule Of events
    Schedule of Events
  • Knowledge Base Logo
    Knowledge Base
  • BEI Science
    BEI Science
  • FR3 Logo
  • MR4 Logo
  • Vector Resources Logo
    Vector Resources
  • SR3 Logo
    SR3 (Schistosomes)
  • AR Bank Logo
    AR Isolate Bank
  • ARLG Logo
    ARLG Strains
  • HMP Logo
  • Centers of Excellence for Influenza Research and Surveillance (CEIRS)



BEI Resources acquires, authenticates, produces and distributes a variety of materials within several biosafety levels and classifications. We understand that some researchers may only choose to order non-infectious research grade reagents through BEI Resources.

Knowledge Base

The Knowledge Base is an informational database assembled by our Support Specialists and Scientific Staff which provides additional knowledge about the BEI Resources program and reagents through questions and answers.

E-Newsletter/Mailing List Sign-Up

Sign up to receive catalog information, updates, and other technical information from BEI. BEI takes the privacy of your information very seriously.

Contact Us

If you have Comments, Questions and Suggestions regarding BEI Resources please contact us.