If someone has shellfish allergies, are they allergic to all seafood?

Not necessarily. but better be cautious, sea food mix would contain shellfish, also shellfish might be cooked in the same pan and contaminates other fish meat, please see an allergist for testing and follow up, meanwhile keep an Epipen (epinephrine) and antihistaminic tablets handy for any accidental exposure, good luck.

Related Questions

Can I reduce my severe food allergies? I've just learned that I'm allergic to shellfish and nuts. I'm 50 years old and have never had a reaction to any type of seafood, or any other food, until recently. Why would I suddenly develop food allergies? Are th

How . How was it diagnosed? Allergies can occur at any time in life. The only good therapy is avoidance. If you have significant reactions you should carry an epi-pen and have a medi-alert badge. Talk to your doctor about these. Read more...
Hard to say. The immune system changes with age. It is less common to develop food allergies as an adult, but it does happen. See an allergist and make sure you have appropriate therapy available for reactions (epinephrine). Read more...