Containment

The appropriate containment of eradicated polioviruses is a key objective of the Polio Eradication and Endgame Strategic Plan 2013-2018. This objective aims to ensure that all poliovirus stocks are safely and securely contained to minimize the risk of reintroducing of these viruses into the population.

Wild poliovirus type 2 is the first of three wild poliovirus types to be eradicated. The Global Commission for the Certification of Poliomyelitis Eradication declared this in September 2015. It is important that all poliovirus type 2 is destroyed or safely and securely contained so the virus is not released from facilities that retain it, to again cause paralysis or death.

  • 07-04-2017

    178 countries and territories reported to WHO that they no longer held any wild poliovirus type 2. 18 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials.

  • 17-01-2017

    175 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 18 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials.

  • 03-08-2016

    173 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 17 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials. 14 countries and territories had submitted reports for which more information was expected to be submitted shortly.

  • 25-05-2016

    169 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 17 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials. 13 countries and territories had submitted reports for which more information was expected to be submitted shortly.

  • 13-04-2016

    166 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 14 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials. 16 countries and territories had submitted reports for which more information was expected to be submitted shortly.

  • 14-03-2016

    126 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 14 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials. 18 countries and territories had submitted reports for which more information was expected to be submitted shortly.

  • 12-02-2016

    116 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 12 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials. 5 countries and territories had submitted reports for which more information was expected to be submitted shortly.

  • 22-01-2016

    93 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 12 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials. 21 countries and territories had submitted reports for which more information was expected to be submitted shortly.

  • 28-12-2015

    85 countries and territories had reported to WHO that they no longer held any wild or vaccine-derived poliovirus type 2. 13 countries and territories had designated poliovirus-essential facilities to retain poliovirus type 2 materials. 26 countries and territories had submitted reports for which more information was expected to be submitted shortly.

 

More information on containment

Publications

Global polio eradication: progress towards containment of poliovirus type 2, worldwide 2017
Weekly epidemiological record