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[[File:Cat flea.jpg]]

 

[[Image:Cat flea.jpg|thumb|right|150px|Cat Flea - August La Roux 2007,  Wikimedia Commons]]

Flea allergic dermatitis is the most common skin disease of dogs and cats worldwide. Cases are caused by flea infestation, mainly by ''Ctenocephalides felis'', the cat flea, but ''Ctenocephalides canis'', ''Archaeopsylla erinacei'', ''Spylopsyllus cuniculi'' and ''Pulex irritans'' can also be found on cats and dogs. Fleas are blood sucking, wingless insects that live and breed in the hair coat of an animal and often cause pruritis and annoyance. The term flea allergic dermatitis refers to the condition that arises due to hypersensitivity to flea saliva. Flea saliva also contains irritant components that contribute to the disease.

Flea allergic dermatitis is the most common skin disease of dogs and cats worldwide. Cases are caused by flea infestation, mainly by ''Ctenocephalides felis'', the cat flea, but ''Ctenocephalides canis'', ''Archaeopsylla erinacei'', ''Spylopsyllus cuniculi'' and ''Pulex irritans'' can also be found on cats and dogs. Fleas are blood sucking, wingless insects that live and breed in the hair coat of an animal and often cause pruritis and annoyance. The term flea allergic dermatitis refers to the condition that arises due to hypersensitivity to flea saliva. Flea saliva also contains irritant components that contribute to the disease.