TY - JOUR T1 - Predicting Vaccine Cold-Chain Failure Using Temperature Streams, Packaging, Route, and Excursion History A1 - Samuel Boateng A1 - Kwesi Mensah A1 - Kojo Asante A1 - Linda Owusu JF - Pharmacophore JO - Pharmacophore SN - 2229-5402 Y1 - 2026 VL - 17 IS - 2 DO - 10.51847/v4xb0YLxhw SP - 112 EP - 122 N2 - Vaccines can lose potency when exposed to temperatures outside their specified storage range, and cold-chain failures may compromise immunization programs even if discovered only after delivery. Most monitoring systems react after a temperature threshold has already been crossed, limiting opportunities for re-cooling, rerouting, or shipment replacement before product integrity is threatened. To address this, a predictive machine learning model is proposed to estimate the probability of vaccine cold-chain failure before an excursion occurs, integrating streaming temperature data, packaging insulation characteristics, route conditions, and the shipment or container’s excursion history. Using a gradient-boosted classification framework applied to historical shipment records and continuously updated sensor feeds, the model considers features such as temperature trends, variability, packaging configuration, phase-change material properties, expected route exposure, and prior excursion severity. By identifying shipments whose thermal conditions are becoming unstable before formal failure thresholds are crossed, the model can support targeted interventions, including expedited transfer, additional cooling at hand-off points, or pre-release quality review. Predictive cold-chain analytics have the potential to shift vaccine logistics from retrospective excursion documentation to proactive risk management, reducing wastage, enhancing supply-chain resilience, and safeguarding the integrity of vaccination programs. UR - https://pharmacophorejournal.com/article/predicting-vaccine-cold-chain-failure-using-temperature-streams-packaging-route-and-excursion-his-cc8sfsgr5mivqpk ER -