An allergic response is a hypersensitive immune reaction to a substance that normally is harmless or would not cause an immune response in everyone. An allergic response may cause harmful symptoms such as itching or inflammation or tissue injury.
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Famous quotes containing the word response:
“I am accustomed to think very long of going anywhere,am slow to move. I hope to hear a response of the oracle first.”
—Henry David Thoreau (18171862)