This report contains the data and analysis of 2017 data of prices averages reported by countries, organized by vaccine, listing all reported manufacturers and vial sizes. Prices are indicated by procurement mechanism, Gavi status, income group and WHO region. The dataset (including past years) can also be downloaded from http://who.int/immunization/MI4A This 38 page report is intended to guide countries in their use of the MI4A vaccine purchase data. MI4A focuses on addressing the needs of self-procuring countries that experience limited benefit from international support - particularly, middle-income countries (MICs) who often lack purchasing power. For example, the report shows that compared with self-procuring MIC prices, UNICEF Supply Division (SD) (excluding Gavisupported countries) or PAHO Revolving Fund (RF) procurement leads to lower prices for 90% of vaccines. In these instances, the UNICEF/PAHO pool-procured average price per ,This report contains the data and analysis of 2017 data of prices aver