Periodic Intensification of Routine Immunization (PIRI): Lessons learned and implications for action
This paper surveys a wide array of PIRI experiences, drawing on the fragmented documentation that exists at this time. It is based on a desk review of planning documents,guidelines, website information, data on the accomplishments of these campaigns (where available) and other gray literature, plus interviews and email communication with individuals from several countries where PIRI activities have been conducted. Gathering of this information was facilitated by an initial communication from WHO/IVB in Geneva to regional immunization advisors in 2006.Because this paper is not an evaluation and is not based on case studies, it cannot provide in-depth analyses of causes of important problems or provide step-by-step solutions. Rather, it provides a snapshot of the range of activities and experiences across countries, describes common features and issues, and provides some practical suggestions for country planners to consider.