While COVID-19 primarily spreads through respiratory droplets from coughing or sneezing, polio transmits differently—through contaminated water or food, unwashed hands, or direct contact with an infected person. Both diseases share early symptoms such as fever, headaches, and coughing, making initial diagnosis challenging.

Vaccination campaigns halted by COVID-19 restrictions

“Niger successfully eliminated previous polio outbreaks in 2019 thanks to large-scale vaccination campaigns,” explains Dr. Pascal Mkanda, Polio Eradication Program Coordinator for the African Region. “However, these efforts have been suspended due to COVID-19 safety protocols requiring social distancing and hand hygiene measures.”

The recent cases in Niamey and Tillabéri mark a new vaccine-derived poliovirus outbreak, unrelated to last year’s 24-month epidemic that was declared over in Niger, Kenya, and Mozambique in December.

polio surveillance continues despite challenges

“The poliovirus will inevitably continue circulating, potentially paralyzing more children,” warns Dr. Mkanda. “Without timely, high-quality vaccination campaigns, we cannot effectively curb transmission.”

regional outbreak extends to 15 african countries

Niger now joins 14 other African nations experiencing vaccine-derived polio outbreaks, including Angola, Benin, Burkina Faso, Cameroon, Central African Republic, Chad, Côte d’Ivoire, Democratic Republic of Congo, Ethiopia, Ghana, Mali, Nigeria, Togo, and Zambia.

Factors contributing to ongoing transmission include low routine immunization coverage, vaccine refusal, limited access in remote areas, and suboptimal campaign quality. While mass vaccination drives remain postponed, African health officials are working to maintain critical disease surveillance systems.

While no cure exists for polio, prevention remains possible through vaccination. Health authorities across Africa are racing to boost childhood immunity levels and protect children from polio-related paralysis.