But with naturally occurring polio cases now so low there is a minority which claims the oral live vaccine is causing significant harm.
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Sabin was convinced that a live oral vaccine was the better answer.
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There are no live viruses in the vaccine.
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Because this vaccine contains a live virus, the CDC maintains a surveillance system to watch for human infections.
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Fluenz is a live attenuated - weakened - intranasal vaccine, which has been used for several years in the United States under the brand name FluMist.
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We used special silicone molds produced by our collaborators at THeraject to create the microneedles containing a dried version of a live modified adenovirus-based candidate HIV vaccine in the sugar formulation.
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It is a cell-free filtrate vaccine, which means it contains no dead or live bacteria in the preparation.
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