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On 21 May 2018, the World Health Organization (WHO) confirmed a case of vaccine-derived poliovirus type 1 in a child with acute flaccid paralysis in Lae, Morobe Province, Papua New Guinea. While PNG was declared polio-free in 2000,[2] longstanding low vaccine coverage, poor environmental conditions conducive to the spread of poliovirus, and inadequate surveillance for acute flaccid paralysis means that the risk of an outbreak was known.[3] Australian residents travelling to PNG or Papua Province who intend to stay longer than 4 weeks should have a documented polio booster within 4 weeks to 12 months before the date of departure from PNG or Papua Province. [Extracted from the article]