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Tag "Bivalent oral polio"
Polio: Africa begins synchronised vaccination campaign
Immunisation activities were stepped up in many states in Nigeria over the weekend as the country joined twelve other African nations to immunise over 116 million targeted children to tackle
Worldwide switch to bivalent oral polio vaccine begins on Sunday
The trivalent oral polio vaccine has been instrumental in the near-eradication of the disease worldwide, but the vaccine still has some challenges that can be addressed by switching to a