Polio is once again spreading in Pakistan, where officials say more than 1 million children missed their vaccination doses last month, underscoring the challenges they face in eradicating one of the world’s most intractable diseases.

Polio cases are rising ahead of a new vaccination campaign in Pakistan, where violence targeting health workers and the police protecting them has hampered years of efforts toward making the country polio-free.

According to World Health Organization Pakistan and Afghanistan remain the last two countries where polio is endemic

Pakistan and Afghanistan are the world’s last two countries where polio remains endemic. “This should be a wake-up call for all parents and communities,” Ayesha Raza Farooq,