Spear Bio, developer of the next-generation ultrasensitive immunodiagnostics and proteomics platform, completes ra...

A study in Switzerland strongly supported that triple vaccination or natural infection following double vaccination results in a robust neutralization response, supporting booster doses.

We are happy to announce Spear Bio's ISO certification by BSI Group for "Quality Management System aligned with ISO 13485:2016." This is a recognition of our efforts to maintain the highest quality products and services for our customers. Read more at:

Dried Blood Spot (DBS) sampling is a powerful tool for SARS-CoV-2 serosurveillance. We showcase the sensitivity of NAB-Sure against other assays and validate NAB-Sure DBS result accuracy by comparing it with standard techniques in this app note.

PRNT, PsVNA, and ELISA are commonly used methods to detect the virus-neutralizing activity of antibodies. In this article, we compare them to NAB-Sure™, an ultrasensitive surrogate virus neutralization test with distinct advantages over these assays.

A recent article suggested that the BQ.1.1 and XBB.1 variants have a significantly higher ability to evade neutralizing antibodies. NAB-Sure™ now provides cell-free testing of NAb against XBB.1.5 and BQ.1.1 variants.

RT @wyssinstitute: Did you know that @SpearBio is empowering disease research, disease diagnostics, and patient care with the Wyss-develope…

We are thrilled to announce that NAB-Sure™ now provides cell-free testing of Neutralizing Antibodies (NAb) against XBB.1.5 and BQ.1.1 variants and the previously released Wild Type and BA.4/5. Visit our website to discover NAB-Sure™ Assays: #NABSure

We are thrilled to announce our Evaluation Services launch, which allows customers to quickly and comprehensively evaluate NAB-Sure™, a cell-free neutralizing antibody test kit. Send us a request now to learn more about Evaluation Services

A recent study provided new insights into hybrid immunity on BNT162b2-induced diverse memory B cells in response to Omicron breakthrough infection. To read more about this study:

Spear Bio team at vendor show today! We thoroughly enjoyed meeting with industry experts, discussing the latest trends, and sharing what we are doing at Spear Bio. Looking forward to the next show! If you haven’t met the team yet, find us at #nabsure

Kick off this summer with great conversation at Wyndham Boston Beacon Hill! We look forward to meeting you at tomorrow's vendor show. Our team at #spearbio would love to introduce our ultrasensitive immunoassay platforms. #nabsure Meet with our team and enjoy free lunch 🥙!

NAB-Sure™: Ultrasensitive, cell-free neutralizing antibody assays for SARS-CoV-2 Check out the Spear immunoassay platform in action!

Understanding neutralizing antibodies is crucial during evolving covid-19 pandemic. In a recent article, scientists highlight the importance of assays measuring SARS-CoV-2 neutralizing antibodies (NAbs) in COVID-19. To read more on the website:

Our co-founder, President & CTO, Feng Xuan, had a great time presenting at Vaccines Summit Boston yesterday. We thank #vsboston for providing a platform for exchanging ideas and the audiences for significant interaction! Check out Spear Bio's technology:

We are excited to share that Spear Bio co-founder, President & CTO Feng Xuan, Ph.D., will present at the upcoming Vaccines Summit (#VSBoston, May 22-24), under the session of COVID-19 Vaccine R&D, at the Boston Marriott Newton Hotel.

A recent study found that repeated vaccination with inactivated virus vaccine may back-boost previous memory and dampen the immune response to a new antigenically related but distinct viral strain, such as the Omicron variant. Check more details here:

NAB-Sure developed by Spear Bio, is a highly sensitive option for precise measurement of neutralizing antibodies against SARS-CoV-2, providing an alternative to cell-based assays. Find more details on the application note here:

Spear Bio!