Representatives of the federal and provincial governments held an emergency meeting with the country director of the World Health Organisation to discuss the impact of the travel advisory.
WHO Country Director Dr Nima Saeed Abid told the meeting that the restrictions came into effect on the day of the announcement on May 5 but promised in response to a request to urge WHO headquarters in Geneva for a 15-day relaxation, Dawn News reported.
According to the WHO, the poliovirus is being exported from Pakistan, Cameroon and Syria.
The WHO declared it mandatory for people from these countries to receive polio vaccine before being allowed to go abroad.
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Pakistan government has already announced to set up polio counters at all international airports and other exit points.
Following the meeting, a WHO official told Dawn that his team would press Geneva to grant the Pakistan government's request for a 15-day grace period.
"This request will hopefully be approved, with certain conditions. For example, one of the conditions may be that the head of state must declare a national public health emergency and establish immunisation counters as soon as possible," the source said.