While the flu vaccine is reportedly only effective 10 percent of the time, those who get their flu shot are much less likely to have serious complications if they do get sick. - From WebMD
Meanwhile, WebMD asked William Schaffner, MD, professor of preventive medicine and infectious diseases at Vanderbilt University and a spokesperson for the Infectious Diseases Society of America, to shed light on the flu vaccine — why it isn’t perfect, why it’s still recommended and what improvements may be in the pipeline.
So it is not suspended in the air very long.
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