Discover how mAbs work at the molecular level to provide immediate, targeted protection against infectious diseases — bridging the gap between exposure and immunity.
Think of antibodies as your body's molecular security force. Each antibody is shaped like a Y, with two identical arms that can grab onto specific parts of a virus or bacterium — like a key fitting into a lock.
When your immune system encounters a threat, it produces millions of different antibodies. Scientists can isolate the most effective ones, clone them in the lab, and produce identical copies at scale.
The result: A targeted therapy that delivers the exact antibodies you need, when you need them — without waiting for your immune system to figure it out.
Unlike vaccines that teach your body to make antibodies, mAbs provide ready-made protection that works immediately upon administration.
Scientists analyze viral structure to find the best binding sites — usually proteins the virus uses to enter cells.
Antibodies are designed and optimized in the lab, then produced at scale using specialized cell cultures.
mAbs are delivered via injection, typically intramuscular, where they enter circulation immediately.
Antibodies bind to the virus, blocking infection and flagging pathogens for immune system cleanup.
85% effectiveness in preventing severe RSV in infants. Nirsevimab (Beyfortus) provides season-long protection.
Several mAbs authorized for treatment and prevention, especially for immunocompromised populations.
Broad-spectrum antibodies targeting conserved flu proteins show promise across multiple strains.
Inmazeb combination therapy dramatically improves survival rates in Ebola patients.
Long-acting antibodies showing promise as PrEP alternative with potential 6-month dosing.
CIS43LS provides season-long protection from single injection, extending mAb paradigm to parasitic diseases.
New approaches to multidrug-resistant bacteria including C. difficile and Pseudomonas aeruginosa.
Checkpoint inhibitors and targeted therapies revolutionizing cancer treatment across many types.