Climate-Resilient Vaccine Logistics: Evaluating the Role of Portable Cold Chain Solutions in Remote Healthcare

Abstract

Muhammed Rameez Saidarakath, Mayur U Shetty, Sharad B Anchan, Preeti Maurya, Sonali MK and Priyanka Jain

Introduction: Efficient vaccine storage and transportation are critical for the success of immunization programs, particularly in remote and resource-limited areas. This study analyzes the efficiency and impact of battery-powered active vaccine carriers within global vaccine distribution systems.

Objectives: To evaluate the performance, efficiency, and user acceptability of the battery-powered Emvólio vaccine carrier in rural and remote areas of Northeast India.

Study design: This study is a cross-sectional, observational study conducted across multiple rural health centers in Meghalaya and Manipur, Northeast India.

Methods: Emvólio, a portable, batterypowered medical-grade refrigerator developed by Blackfrog Technologies, was evaluated through rigorous field trials in diverse environmental conditions. Key performance indicators such as temperature stability, battery longevity, and user feedback were analyzed. The carriers' ability to harness solar energy for sustained operation in off-grid areas was also assessed.

Results: The results demonstrated significant improvements in maintaining optimal vaccine storage temperatures and enhancing vaccine reach to underserved populations. Emvólio outperformed traditional solutions like Ice Lined Refrigerators (ILR) and Solar Direct Drive refrigerators (SDD) in terms of energy efficiency and cost-effectiveness.

Conclusion: DRE-compatible, batterypowered active vaccine carriers offer a robust, sustainable, and scalable solution for strengthening immunization infrastructure in remote and climate-affected areas, ensuring vaccine effectiveness and improved health outcomes.

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