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Report raises concern about rare polio cases caused by oral vaccine

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Four African countries have reported new cases of polio link to the oral vaccine in a report late last week the World Health Organization partners noted nine new polio cases cools by the vaccine in Nigeria Congo Central African Republic and Angola seven countries elsewhere in Africa have seen similar outbreaks in cases have been reported in Asia in rare cases the live virus in oral polio vaccine can mutate and spoke out breaks the World Health Organization has long relied on the cheap and easily administered oral polio vaccine however western countries use a more expensive injectable vaccine the contains an inactivated viruses capable of causing

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