After serious setbacks in April led to a cluster of new polio cases, Pakistan is revamping its vaccination strategy in a renewed effort to wipe out the virus.

The country is one of just three — along with Afghanistan and perhaps Nigeria — in which polio is still endemic. Eradication of the virus in Pakistan is crucial to the drive to rid the world of polio, once and for all.

Now, vaccination teams will take a friendlier approach, ask fewer questions, make fewer follow-up visits, and stop recording extensive details about the families they visit, Pakistan’s polio eradication program announced.

Families were intimidated by the questions, and vaccinators spent too much time filling out the registration forms introduced in 2016, said Babar Atta, the polio coordinator in the prime minister’s office, according to local media.