WOBURN, Mass.--(BUSINESS WIRE)--Spear Bio, an innovator in ultrasensitive protein biomarker detection, today announced plans to unveil new SPEAR immunoassay and instrument innovations at the Alzheimer’s Association International Conference® 2026, taking place July 12–15 in London, UK. The launches include the first commercially available singleplex immunoassay for eMTBR-Tau, a novel epTau 217 assay for measuring pTau 217 across venous and capillary blood, and an instrument platform to fully aut