
This document provides the September 2025 OFFLU Avian Influenza Matching (AIM) technical report, summarising standardised HI assays and antigenic cartography to assess vaccine–virus match for contemporary H5Nx (notably clade 2.3.4.4b), presenting phylogenetic context, antigenic distance results (showing within-clade vaccines generally remain suitable while older/out-of-clade seeds show limited cross-reactivity), and outlining guidance and next steps for surveillance, reagent panels, and vaccine strain selection.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
