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Polio Outbreak Risk Increases in Western Ukraine as War Ensues

June 11, 2022

Washington, D.C. – The reintroduction of the wild-type poliovirus or circulating vaccine-derived poliovirus (cVDPV) is a sizeable threat in the Ukraine, which is considered a high-risk country for vaccine-preventable infections, including poliomyelitis, an extremely dangerous disease that causes paralysis in children. The situation has been exacerbated by the COVID-19 pandemic, the war in eastern Ukraine, and ongoing healthcare reforms, scientists from Ukraine explained ÃÞ»¨ÌÇÖ±²¥ Microbe, the annual meeting of the American Society for ÃÞ»¨ÌÇÖ±²¥. 

On October 6, 2021, a case of paralytic poliomyelitis was confirmed in a 1.5-year-old child from Western Ukraine with a poliovirus shedding genetically similar to an environmental sample from Dushanbe, Tajikistan. Since January 2022, 19 cases of paralytic polio have been confirmed in western Ukraine, leading to a declaration of a public health emergency in the Rivne and Zakarpattia provinces.  

“The invasion of the Russian Federation into Ukraine on February 24, 2022 led to thousands of victims, occupied territories, millions of refugees and internally displaced persons. All this disrupted access to medical care, significantly disrupted routine vaccinations and the response to the polio outbreak in Ukraine,” the scientists wrote.  

The high risk of spread is due to low immunization—73.3% as of December, 2021—as well as gaps in immunization at the regional level, said presenting author Dmytro Stepanskyi, head of the Department of ÃÞ»¨ÌÇÖ±²¥, Virology, Immunology and Epidemiology, Dnipropetrovsk Medical Academy of the Ministry of Health of Ukraine. These factors lead to high risk of international spread of the virus to polio-free countries. 

The Ministry of Health of Ukraine has worked with international partners to develop a unified strategy to respond to the outbreak. These measures include strengthening surveillance nationally, immunization efforts for unvaccinated children under 6 years of age, as well as advocacy and communications activities.  

Illustration of Polio
Illustration of polio provided by Dmytro Stepanskyi and student Zaitseva Katerina (Ukraine).

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ÃÞ»¨ÌÇÖ±²¥ Microbe is the annual meeting of the American Society for ÃÞ»¨ÌÇÖ±²¥, held June 9-13, 2022, in Washington, D.C.  

The American Society for ÃÞ»¨ÌÇÖ±²¥ is one of the largest professional societies dedicated to the life sciences and is composed of 30,000 scientists and health practitioners. ÃÞ»¨ÌÇÖ±²¥'s mission is to promote and advance the microbial sciences.   

ÃÞ»¨ÌÇÖ±²¥ advances the microbial sciences through conferences, publications, certifications, educational opportunities and advocacy efforts. It enhances laboratory capacity around the globe through training and resources. It provides a network for scientists in academia, industry and clinical settings. Additionally, ÃÞ»¨ÌÇÖ±²¥ promotes a deeper understanding of the microbial sciences to diverse audiences.  


Author: ÃÞ»¨ÌÇÖ±²¥ Communications

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