Frontline health workers in Pakistan are conducting polio vaccination drives inside what researchers describe as one of the world's most violent security environments, with repeated armed attacks threatening to derail a decades-long global eradication effort. The country remains one of only two nations — alongside Afghanistan — where wild poliovirus is still endemic.

Recent Attacks on Vaccination Teams

In late April 2026, one police officer was killed and four others were injured when their vehicle, escorting polio vaccinators, was ambushed in Hangu district of Khyber Pakhtunkhwa (KPK) province. On 24 May, a police official deployed with a vaccination team sustained serious injuries in a firing incident near the Ishaqzai Qila area of Chaman district in Balochistan province, though the health workers themselves were unharmed, according to reports.

On 18 May, at least two police personnel escorting polio vaccination teams were killed in separate incidents in Bajaur district, KPK. Unidentified assailants struck teams in the Tabbai and Dag Qila regions of Salarzai, according to a senior police official cited in local media reports.

The Geographic Overlap Between Violence and Poliovirus

A report by Manal Fatima, Assistant Director at the Atlantic Council's Scowcroft Middle East Security Initiative, and Michael Kugelman, a resident senior fellow for South Asia at the Atlantic Council, identifies a troubling pattern: the geography of terrorist violence and poliovirus reservoirs in Pakistan is 'nearly identical.'

'The majority of attacks are concentrated in KPK and Balochistan provinces. Those same two provinces continue to host persistent reservoirs of wild poliovirus, accounting for the bulk of Pakistan's recent caseload, including both KPK cases confirmed so far in 2026. Vaccinators have become the biggest casualty of this geographic overlap,' the report stated.

Scale of the Threat: Militant Groups and Casualty Figures

Pakistani government data tracked since 2012 records 96 deaths and 170 injuries from attacks on polio campaigns, including 61 police officers and 27 health workers. The Tehrik-e-Taliban Pakistan (TTP), an al-Qaeda-allied group, along with affiliated Islamist militant factions, is held responsible for the majority of these attacks. Officials have stated that over 200 polio workers and police escorts have been killed since the 1990s.

The Atlantic Council report warned that the resurgence of the TTP — which was responsible for nearly sixty deaths in assaults on polio workers and their security details between 2012 and 2014 — has compounded the already formidable challenge of reaching the 'final mile' of eradication.

Pakistan's Polio Caseload: Progress and Setbacks

Pakistan reported 74 polio cases in 2024, a more than ten-fold rise from just six cases in 2023. Sustained vaccination campaigns helped bring that figure down to 30 cases in 2025. So far in 2026, Pakistan has confirmed three new polio cases. The Global Polio Eradication Initiative reports that all six poliovirus cases recorded globally in 2026 have been from Pakistan and Afghanistan.

What Is at Stake for Global Eradication

'How Pakistan navigates this paradox this year will shape the outcome of a thirty-year global eradication effort. If the eradication campaign falters, wild poliovirus cases could rise in Pakistan and Afghanistan, squandering years of progress and risking transmission beyond the region,' the Atlantic Council researchers wrote. The stakes, they argue, extend well beyond South Asia — a failure to contain the virus in these two countries could undo gains made across the globe over three decades.