Are there differences between allergy to fish and invertebrates?
Yes. In general, if your child is allergic to any of the invertebrates there is more chance of being allergic to other invertebrates. This is called cross-reactivity and is more likely to happen with invertebrates than with fish. However, it can happen with fish as well. When a child has an allergy to invertebrates all invertebrates should be avoided. Children who are allergic to invertebrates may not be allergic to fish.