The EVM Site Selection Tool User Guide

Overview

This document describes how to choose the sites for an EVM assessment. The first step is to collect basic data on the country’s immunization supply chain. These data are then used to select sites in a systematic manner so that the sample is representative of the whole supply chain; the results of the EVM assessment should then provide a valid picture of its strengths and weaknesses. This selection process must be done in a standardized way to ensure that results within and across countries can be interpreted and compared in a consistent way.