Return on investment of the electronic vaccine intelligence network in India.

The electronic vaccine intelligence network (eVIN) was introduced by India's Ministry of Health and Family Welfare in 12 states and was implemented by the United Nations Development Programme through the Gavi health system strengthening support during 2014-17 to replace the traditional paper-based cold-chain management system with an electronic vaccine logistics management system. An economic assessment was conducted as part of the overall assessment of eVIN. The objective of the economic assessment was to conduct a return on investment analysis of eVIN implementation. Return on investment was defined as the ratio of total benefits (savings) from eVIN to total investment in eVIN. All costs were calculated in 2020 prices and reported in Indian rupees (1 US dollar = INR 74.132). A one-rupee investment in eVIN led to a return of INR 0.52 for traditional vaccines. The highest cost savings from eVIN was from better vaccine stock management. When same percentage of savings from the new vaccines were incorporated into the analysis, one-rupee investment in eVIN led to a return of INR 1.41. In the future, when only recurrent costs will exist, the return from eVIN will be even higher: a one-rupee investment in eVIN will yield a return of INR 2.93. The assessment of eVIN showed promising results in streamlining the vaccine flow network and ensuring equity in vaccine stock management along with good return on investment; hence, there was a rapid expansion of eVIN in all 731 districts across 36 states and union territories in the country.

Programmatic assessment of electronic Vaccine Intelligence Network (eVIN).

eVIN is a technology system that digitizes vaccine stocks through a smartphone application and builds the capacity of program managers and cold chain handlers to integrate technology in their regular work. To effectively manage the vaccine logistics, in 2015, this technology was rolled-out in 12 states of India. This study assessed the programmatic usefulness of eVIN implementation in the areas of vaccine utilization, vaccine stock and distribution management and documentation across selected cold chain points. A pre-post study design was used, where cold chain points (CCPs) were selected using two-stage sampling technique in eVIN states. Pre-post comparative analysis was carried out on the identified indicators using both primary and secondary data sources. The vaccine utilization data reflects that the utilization had reduced from 305.3 million doses in pre-eVIN period to 215.0 million doses in post-eVIN period across 12 eVIN states, resulting into savings of approximately 90 million doses of vaccines. Number of facilities having stock-out of any vaccine showed a significant reduction by 30.4% in post-eVIN period (p<0.001). There was a 4.0% drop in facilities reporting minimum stock of any vaccine after implementation of eVIN. Facilities with maximum stock of any vaccine had increased from 37.4% in pre-eVIN to 39.2% in post-eVIN. During the pre-eVIN period, only 38.6% facilities updated vaccine stock on a daily basis, while in post-eVIN period, 53.5% facilities updated vaccine stock on daily basis. The completeness of records in the vaccine stock registers, indent form and temperature logbook have been substantially improved in the post-eVIN period (p<0.001). eVIN had helped in streamlining the vaccine flow network and ensured equity through better vaccine management practices. It is a powerful contribution to strengthen the vaccine supply chain and management. Upscaling eVIN in the remaining states of India will be crucial in improving the efficacy of vaccines and cold chain management.