Responding to a poliovirus event and outbreak, Part 1: General (SOPs) describes the general principles and steps to facilitate timely and effective responses to poliovirus events and outbreaks, and incorporate lessons learned from recent previous outbreak response efforts. This document summarizes roles and responsibilities of national governments and Global Polio Eradication Initiative (GPEI) partners. Effective 01 November 2017 until 30 April 2018