Zambian Government Braces Up For An Imminent Outbreak Of Polio

African countries have continued to battle the scourge of polio. Zambia has now come to the spotlight as the country is currently responding to a declared poliovirus outbreak following the detection of the virus in wastewater in Lusaka in February 2026, despite

being declared free of indigenous wild poliovirus in 2005. While no clinical cases of paralysis have been reported in this recent outbreak, the detection

confirms virus shedding within communities.

Protecting Children Under Five Years

The country confirmed the detection of poliovirus in environmental samples collected in Zambia, specifically in the capital city, Lusaka. Although no confirmed cases of paralytic polio have been reported, the presence of the virus in wastewater signals possible silent transmission within communities, particularly among unvaccinated children. Polio is a highly infectious viral disease that primarily affects children under five years of age. It spreads through contaminated water, poor sanitation, and close person-to-person contact. In severe cases, it can cause irreversible paralysis and even death. While Zambia had previously achieved polio-free status, this recent detection highlights how easily the virus can re-emerge if population immunity declines.Globally, the fight against polio has been led by initiatives supported by the World Health Organization and international partners, resulting in dramatic reductions in cases over the past decades. However, outbreaks continue to occur in areas where immunization coverage is incomplete, reinforcing the need for sustained vaccination efforts and strong surveillance systems. In response, Zambian health authorities have activated emergency response measures, including intensified surveillance and targeted immunization campaigns aimed at protecting all eligible children. These efforts are critical to preventing further spread and safeguarding public health. The recent outbreak serves as an important reminder: polio eradication requires constant vigilance, community participation, and full vaccination coverage. Protecting every child through immunization remains the most effective way to stop the virus and keep Zambia polio-free.

Zambian Government And Response To The New Threat

Acting Minister of Health Cornelius Mweetwa said the virus was detected through the country's environmental surveillance system, noting that no confirmed clinical cases of polio-related paralysis have been reported.

"The detection through the environmental wastewater surveillance system confirms that the virus is being shed in our communities," he said in a ministerial statement delivered in the parliament.

Mweetwa said that circulating poliovirus has also been detected in some neighboring countries, pointing to a broader regional outbreak.

He said the government has established a national poliovirus response management system to coordinate containment efforts. A risk assessment and detailed field investigations are currently underway to determine the extent of possible community transmission.

The government will work with the World Health Organization to conduct vaccination campaigns targeting all children under the age of five in identified high-risk areas, he added.

While Zambia last recorded an indigenous wild poliovirus case in 1995, Mweetwa said the country has since periodically detected cases of circulating poliovirus, with the most recent case reported in December 2023.

  

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