Africa's most extensive polio vaccination campaign since 2020, launched in May 2023 to immunize 21 million children under five.
Vaccinations began in Cameroon, Chad, and Niger before being extended to the Central African Republic in response to 14 detections of type-2 poliovirus in 2023.
The multi-country initiative is supported by the World Health Organization (WHO) through the Global Polio Eradication Initiative (GPEI) and comprises synchronized vaccinations and joint plans in border communities to halt polio transmission.
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