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