Animal bite anaphylaxis, rarely diagnosed but underappreciated

Area of Science:

• Allergy and Immunology
• Toxicology
• Veterinary Medicine

Background:

• Animal allergies manifest in various ways, from mild respiratory symptoms to severe anaphylaxis.
• Anaphylaxis is typically associated with insect stings or food allergies, but animal bites can also trigger severe reactions.

Purpose of the Study:

• To investigate the frequency and characteristics of anaphylaxis resulting from animal bites.
• To determine if the incidence of animal bite-induced anaphylaxis is underreported in medical literature.

Main Methods:

• A comprehensive literature review was conducted using databases like PubMed, Google, and Google Scholar.
• Keywords included "animal bite anaphylaxis" and related terms.
• An inquiry was made to the Anaphylaxis Registry ANAPHYLAXIE.net for additional case data.

Main Results:

• Approximately 40 cases of anaphylaxis linked to animal bites were identified in the literature.
• Rodent bites (mice, rats, hamsters, guinea pigs) were the most common cause.
• A survey indicated that many cases of laboratory animal bite anaphylaxis in the U.S. are not reported.

Conclusions:

• Anaphylaxis from animal bites is infrequently documented but likely occurs more often than reported.
• This condition should be considered in the differential diagnosis for patients experiencing anaphylactic symptoms post-bite.