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Polio Switch

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The switch from the trivalent oral polio vaccine (tOPV) to the bivalent oral polio vaccine (bOPV) will be a globally coordinated process and is scheduled to occur in April 2016. After this date, no manufacturers will produce or distribute tOPV, and any use of tOPV may jeopardize polio eradication due to the possible generation of circulating vaccine-derived polioviruses.
Timely planning and implementation of such a plan will allow countries to successfully recall and dispose of tOPV, minimize tOPV wastage, validate tOPV disposal, and contribute to a world free of circulating vaccine-derived type 2 polioviruses.
To meet this timeline, it is imperative that all OPV-using countries begin planning the switch in early 2015, and develop a National Switch Plan by July 2015.

Fecha
Overview of the tOPV-bOPV Switch Validation Process
Switch Monitoring Checklist
Lessons learned on IPV introduction and the Switch from tOPV to bOPV in the Americas
Lessons learned on IPV introduction and the Switch from tOPV to bOPV in the Americas
Model for the National Switch Validation Report
Monitoring the Switch from tOPV to bOPV - Guidelines for Developing National Monitoring Plans
Issues Management and Media Guide
OPV Switch Communication Planning Guide
Job aid on the switch from trivalent OPV to bivalent OPV
The switch from tOPV to bOPV - Implementation Guidelines
Issues Management Guide: To support countries in preparing for unexpected situations with implications for public communications
Preparing for the withdrawal of all oral polio vaccines (OPVs): Replacing trivalent OPV with bivalent OPV Frequently Asked Questions February 2015