Bluejay Investor Presentation Deck

IL-6 is ideal biomarker for earlier detection of sepsis severity Utility has been limited due to instability of IL-6 levels in patient samples over time ▶ Ideal Sepsis biomarkers: ●●● ● IL-6 is immune biomarker with potential for earlier detection IL-6 levels elevate early in blood IL-6 levels correlate with disease severity and survival in sepsis patients IL-6 levels over time offers quick snapshots of disease progression ● Correlate with disease severity Consistent with current standards of care Appear early enough to guide effective treatments IL-6 levels need to be read quickly to be accurate IL-6 levels change over time in patient samples and become clinically irrelevant ● Symphony IL-6 near patient assay drastically reduces time between when sample is taken and processed bluejay DIAGNOSTICS 1: J Clin Lab Anal. 2019 Sep; 33(7): e22924. Published online 2019 May 26. doi: 10.1002/jcla.22924 PMCID: PMC6757116PMID: 31131487 Copyright ©2023 Bluejay Diagnostics, Inc. All rights reserved in all slides | August 2023 8

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