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H1N1 vaccine shelf life shorter than thought

If you haven’t already gotten your H1N1 flu shot – time might be running out. The manufacturer, Sanofi Pasteur, recently announced about 12 million of its flu vaccinations had a shorter shelf life than originally intended. While the lots remain potent, they are losing their potency more rapidly than expected, said the Centers for Disease… Continue Reading H1N1 vaccine shelf life shorter than thought