Which type of shock is a result of things like a bee sting, drugs, being allergic to nuts and shellfish?

Anaphylactic shock. Severe allergic reaction involving more than one organ system (respiratory, cutaneous, gastrointestinal, genital-urinary, cardiovascular, and/or nervous system) result from release of large quantities or fchemical (mediators) from mast cells and basophils. These reaction can be the result of any of the mentioned allergens as well as others. The reactions are generally very rapid and can be fatal.