DNA tests can obviously be of a sensitive nature and we are more than aware of this. All our DNA sampling kits are sent out in the post in plain envelopes marked Private & Confidential and with no branding on them, so it will look like a normal letter.
Shellfish Allergy Triggers. Within the shellfish family, it is the crustacean group (shrimp, lobster and crab) that causes the greatest number of allergic reactions. Many shellfish-allergic people can tolerate mollusks (scallops, oysters, clams and mussels). Avoid foods that trigger symptoms.
When you have shellfish allergy, you may be at increased risk of anaphylaxis if: 1  You have asthma. 2  You have allergic reactions to very small amounts of shellfish (extreme sensitivity) 3  You have a history of food-induced anaphylaxis.