Are flu shots effective in older adults?
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RealAge answered:Up to 25 percent of older adults don't get adequate protection from the flu, even though they receive a flu vaccine. That's because the immune systems of older adults don't respond as well to flu vaccines. No one really knows why, but dietary factors, underlying illness, immune system aging, prior vaccinations, and exposure to other flu viruses may all play a part in this decreased response.
Up to 25 percent of older adults don't get adequate protection from the flu, even though they receive a flu vaccine. That's because the immune systems of older adults don't respond as well to flu vaccines. No one really knows why, but... More
