Technical Articles
UA030046
H1N1 HA1 and Vaccine Strain Updates: What One Strain Replacement Requires
2026-10-22This article walks through what a vaccine strain replacement demands: antigenic characterization, ferret sera mapping, potency re-validation and where recombinant HA1 reagents fit in.
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- Drug Research
- H1N1
- vaccine strain update
- strain replacement
- antigenic characterization
- potency
- seasonal influenza
- UA030046
Working with Recombinant H1N1 HA1: From Coating to Readout in Order
2026-10-22A practical workflow for recombinant H1N1 HA1 as an assay antigen: coating format, blocking, serum dilution, detection setup and how to read hemagglutination-inhibition and binding outputs.
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- Drug Research
- H1N1 HA1
- ELISA coating
- HI assay
- antigen
- blocking
- readout
- serum screening
- UA030046
H1N1 HA1: How One Subunit Governs Receptor Binding and Antigenic Drift
2026-10-22HA1 carries both the receptor-binding site and the major antigenic sites of influenza hemagglutinin. This article explains how one subunit decides receptor preference and antigenic drift.
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- Drug Research
- H1N1
- HA1
- hemagglutinin
- receptor binding site
- antigenic drift
- RBS
- glycosylation
- influenza
- UA030046
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