Published in Physician Law Weekly, September 1st, 2004
A study of more than 1300 people in Colorado, including more than 300 who were lab-confirmed to have the flu, found that the vaccine worked about 52% of the time for healthy adults and 38% of the time for those with previous medical conditions, the U.S. Centers for Disease Control and Prevention (CDC) reported.
The flu shot "still provided substantial health benefit," even though its protection was much lower than the up to 90% protection that the vaccine affords...
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