Kenya will vaccinate more than 3.4 million children against polio in 13 counties from May 22 to 26. The counties are Nairobi, Machakos, Kiambu, Mombasa, Garissa, Mandera, Isiolo, Wajir, Kitui, Tana River, Lamu, Kilifi and Kajiado. In October last year, 11 counties were flagged as having the greatest risk of outbreak of vaccine-derived polio. Based on risk analysis, Mombasa, Nairobi, Lamu, Tana River, Garissa, Wajir, Marsabit, Killifi, Turkana, Isiolo and Mandera were put on alert. The vaccine-virus can genetically change into a form that can paralyse – this is what is known as a circulating vaccine-derived poliovirus (cVDPV).

Source: The Star May 18, 2021 18:56 UTC