The World Health Organisation declared a global "public health emergency" in early May after new polio cases began surfacing and spreading across borders from countries including Pakistan.
It is one of only three countries, along with Afghanistan and Nigeria, where the crippling disease remains endemic.
But violence has badly hampered the campaign to stamp out polio in Pakistan, where militant groups with strongholds in tribal areas -- including the Pakistani Taliban -- see vaccination campaigns as a cover for espionage.
"A four-day vaccination drive began on Monday to administer polio drops to children in tribal regions," senior campaign official Ikhtiar Ali told AFP.
He said a total of 712,604 children were being targeted for vaccination in the four-day campaign, but warned that another 288,708 would miss out.
Children in North Waziristan, South Waziristan, some areas of Khyber tribal district and Bannu Frontier Region would not be given polio drops because of security problems.
A total of 117 cases of polio have been recorded so far in Pakistan this year, of whom 85 have been in the Federally Administered Tribal Areas.
Pakistan is responsible for 80 per cent of polio cases diagnosed around the world this year.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
