World Health Organization Western Pacific Region

Celebrating a polio-free Western Pacific Region

A measles and polio supplementary immunization campaign in Cambodia, 2011
WHO

Sustaining high-quality surveillance for polio

Sensitive surveillance systems are key to the timely detection of any polio resurgence or importation and to minimize the risks and consequences of any such event. All countries should align their surveillance systems with WHO recommendations and work to ensure consistently high performance.

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