KARACHI, October 19, 2026 — A six-month-old boy from Karachi’s East district has tested positive for wild poliovirus, marking the city’s first reported case since December 2024 and raising Pakistan’s national total for 2026 to seven, according to the National Emergency Operations Centre for Polio Eradication.
The child lives in Union Council Jamali Colony. Officials said the case was detected through the polio surveillance system and confirmed by the Regional Reference Laboratory for Polio Eradication at the National Institutes of Health in Islamabad.
Why a single case is significant
Polio is a highly infectious viral disease that can cause irreversible paralysis. Vaccination can prevent it, but the detection of even one case signals a continuing risk to other children where the virus is circulating.
Health officials said the affected child was malnourished. The National Emergency Operations Centre linked the infection to poliovirus circulation already detected in Karachi, rather than describing it as an isolated incident with no wider implications.
Karachi had gone more than 18 months without a reported case, but that did not mean the virus had disappeared. Environmental surveillance of wastewater has continued to provide warnings about transmission. According to officials cited by Dawn, one Karachi environmental sampling site tested positive in September.
Where Pakistan’s cases have occurred
Of the seven cases reported nationwide in 2026, five were recorded in Khyber Pakhtunkhwa and two in Sindh, according to the emergency operations centre. The latest Karachi diagnosis underscores the continuing challenge of reaching vulnerable children with repeated doses and routine immunisation.
Pakistan remains among the countries where wild poliovirus transmission has persisted despite years of vaccination drives. Health authorities say campaigns need to be combined with sustained routine immunisation and careful surveillance to detect new infections quickly.
Vaccination campaign planned for November
The National Emergency Operations Centre said a nationwide campaign is planned for November 2–8, covering 97 districts, including all districts of Karachi. More than 23.9 million children younger than five are expected to receive polio vaccine drops.
Officials have begun investigating the latest case and assessing targeted responses to prevent further transmission. The precise measures for the affected community had not been fully announced in the accounts reviewed for this article.
What parents should know
Health officials urge families to ensure eligible children receive polio drops during each campaign and complete routine childhood vaccinations. Repeated doses are part of the protection strategy in areas where the virus continues to circulate.
The investigation and November vaccination drive will be key developments to watch. Zark News will update this report if authorities announce additional cases, revised campaign plans or new findings about transmission.
Featured image: Illustrative stock photograph of a medicine bottle by Spencer Davis/Unsplash. It does not depict polio vaccine, the affected child or a vaccination campaign.
Sources: Dawn, October 19; Geo News, October 19; Dunya News, October 19.
