Last Ebola Patient Released

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A medical milestone was reached in Africa as the last Ebola victim was released from the hospital in Sierra Leone.

Health officials presented her with a discharge certificate as others sang and clapped. Sierra Leone was hit hard by the virus, but the country has not had any new cases in three weeks. The World Health Organization won't declare it Ebola free until six weeks after the final patient's discharge.

Researchers say they are one step closer to developing a universal flu vaccine to protect against all strains of the virus. Every year, scientists take an educated guess on which strains of the flu will be circulating in a given season so that the annual flu vaccine can protect against those strains. Sometimes the vaccine doesn't work as it should. On Monday, scientists revealed they are getting closer to figuring out a way to create a vaccine that can protect against multiple strains.

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