A 35-year-old female asked:
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i have 4 siblings, two of them are allergic to fish/seafood like me. the other two and parents aren't allergic. what makes us allergic and not them?

1 doctor answer
Dr. John Chiu
Dr. John Chiu answered
56 years experience Allergy and Immunology
Gene ; environment: Apparently it is just the right (or bad) combinations of genes which interact with the environment to make 3 of you allergic and the other 2 not. I suspect that many of you do suffer from allergic diseases such as hay fever, asthma, and eczema. Given the above information, i would expect at least one of your parents suffers from allergic diseases. Let me know if my guess is right.
Answered on Oct 30, 2013
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