Taliban regularly blow up infrastructure in health facilities, making it difficult to maintain the cold chain for vaccination.
Security agencies say six suicide bombers who may try to disguise themselves as law enforcement are planning an attack.
Successful operations by the army and internal fueding have propelled the militants to give up.
Children vow to obtain an education despite the fact that almost 500 schools have been destroyed by the Taliban over the past 7 years.
In addition to the huge economic impact of terrorist operations nationwide, about 60,000 people have lost their lives.
So far workers in FATA have rebuilt 472 schools and another 374 are in process.
Gen. Qamar Javed Bajwa visited North Waziristan on his first field visit, sending a message that he will continue the successes of his predecessor.
A member of the team was recently given an award for heroism for being injured while defusing a bomb targeting police officers.
The valley was once center of terrorism, officials say.
ISIL is offering millions of rupees to militants in an attempt to develop a foothold in the region, security officials say.