Encyclopedia of Parasitology

Living Edition
| Editors: Heinz Mehlhorn

Flea Allergy Dermatitis (FAD)

  • Heinz Mehlhorn
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27769-6_1210-2
Allergic reaction due to injection of even smallest amounts of flea saliva. A sensitized animal in general may show two types of reactions:
  1. 1.

    A humoral reaction (= immediate hypersensitivity reaction of type I) occurs within a few minutes after the bite due to intensive histamine excretion.

  2. 2.

    A delayed cell-mediated reaction (= hypersensitivity of type IV), which causes heavy pruritus, loss of hair, and (occurrence) various lesions.



Allergic Reaction Hypersensitivity Reaction Humoral Reaction Flea Allergy Dermatitis Histamine Excretion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Further Readings

  1. Bruet V et al (2012) Characterization of pruritus in canine atopic dermatitis, flea bite hypersensitivity and flea infestation and its role in diagnosis. Vet Dermatol 23:487–493CrossRefPubMedGoogle Scholar
  2. Coles TB, Dryden MW (2014) Insecticide/acaricide resistance in fleas and ticks infesting dogs and cats. Parasite Vectors 7:8CrossRefGoogle Scholar
  3. Halos L et al (2014) Flea control failure? Myths and realities. Trends Parasitol 30:228–235CrossRefPubMedGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Institut für Zoomorphologie, Zellbiologie und ParasitologieDüsseldorfGermany