Animal bites and stings with anaphylactic potential

Area of Science:

• Allergy and Immunology
• Toxicology
• Emergency Medicine

Background:

• Anaphylaxis following animal bites and stings presents a significant risk of severe vascular or respiratory reactions.
• While Hymenoptera stings (wasps, bees, hornets) are the most frequent cause, a wide array of other invertebrates and vertebrates can also trigger anaphylaxis.
• Unusual animal culprits are often overlooked, delaying diagnosis and treatment of potentially life-threatening allergic responses.

Purpose of the Study:

• To review the literature and identify documented cases of anaphylaxis and anaphylactoid reactions to diverse animal bites and stings.
• To increase awareness among healthcare professionals regarding the variety of animals capable of causing anaphylaxis.
• To facilitate prompt diagnosis and effective management of severe allergic reactions to animal envenomations.

Main Methods:

• A comprehensive literature review was conducted to gather documented reports of anaphylaxis and anaphylactoid reactions.
• Case summaries of anaphylaxis induced by various animal bites and stings were analyzed.
• Information was synthesized to highlight the diversity of causative agents and management strategies.

Main Results:

• A broad spectrum of animals, beyond the commonly recognized Hymenoptera, were identified as causes of anaphylaxis and anaphylactoid reactions.
• Documented cases illustrate the varied clinical presentations and severity of reactions.
• The review confirmed that many potential anaphylaxis-inducing animals are not commonly recognized.

Conclusions:

• Heightened awareness of the diverse range of animals causing anaphylaxis is essential for timely diagnosis and treatment.
• Effective management includes immediate treatment with epinephrine and antihistamines, referral to allergists for further evaluation (skin testing, RAST, immunotherapy), and reporting to Poison Control Centers.
• Consultation with entomologists or pest control services may aid in identifying and managing specific animal-related allergens.