Minnesota Public Radio slideshow:
Flu vaccine supply only half of what's needed
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The Mayo Clinic's Gregory Poland sits on a federal vaccine advisory board. He says the U.S. needs to take greater steps to ensure that an adequate supply of flu vaccine is manufactured every year. (MPR file photo)

The Mayo Clinic's Gregory Poland sits on a federal vaccine advisory board. He says the U.S. needs to take greater steps to ensure that an adequate supply of flu vaccine is manufactured every year.

(MPR file photo)
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