Gamasoidosis

Dermatitis caused by avian mites

Gamasoidosis, also known as dermanyssosis, is a frequently unrecognized form of dermatitis, following human infestation with avian mites of the genera Dermanyssus or Ornithonyssus. It is characterized by pruritic erythematous papules, macules and urticaria, with itching and irritation resulting from the saliva the mites secrete while feeding. These bites are commonly found around the neck and areas covered by clothing, but can be found elsewhere on the body. The avian mite Dermanyssus gallinae can also infest various body parts, including the ear canal and scalp.

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