SARS-CoV-2 Spike RBD Protein, His Tag (NB.1.8.1) (MALS verified

SARS‑CoV‑2 NB.1.8.1 is an Omicron‑descendant variant under monitoring, first detected in early 2025. It carries multiple spike mutations linked to immune escape and shows a growth advantage over co‑circulating BA.2.86/JN.1 lineages2. While currently at low prevalence in many regions, it is spreading in parts of Asia and is expected to rise, though no major increase in disease severity is anticipated.