Chronic pruritus: an uncommon cause. Avian mite dermatitis caused by Ornithonyssus sylviarum (Northern fowl mite)

Gupta, Amit; Billings, Julie K.; Ellis, C N

doi:10.1001/archderm.124.7.1102

Cited by 6 publications

(2 citation statements)

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“…Apparent confusion with similar mite species, primarily O. sylviarum which may cohabit with D. gallinae and pose similar problems for hen [7,9,32] and human [4,18,20-23,33] health, may also hamper positive identification and appropriate treatment of both species. Hence, the current work also makes comparison among these two mites for the benefit of the end user.…”

Section: Discussionmentioning

confidence: 99%

A gallery of the key characters to ease identification of Dermanyssus gallinae (Acari: Gamasida: Dermanyssidae) and allow differentiation from Ornithonyssus sylviarum (Acari: Gamasida: Macronyssidae)

et al. 2012

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BackgroundDermanyssus gallinae (poultry red mite) is a major threat for the poultry industry and is of significant interest for public health. Identification of D. gallinae can be difficult for scientists not familiar with mite morphology and terminology especially when trying to use identification keys. Moreover, this species may easily be confused with another dermanyssoid mite, Ornithonyssus sylviarum (northern fowl mite), which often shares the same hosts and environment.MethodsSpecimens of D. gallinae were collected at poultry farms in the Puglia and performed for light and scanning electron microscopy observations, identification and micrographs. Moreover specimens of O. sylviarum were collected separately macerated and mounted on slides for light microscopy observations, identification and pictures.ResultsThe micrographs used in this study, based on LM and SEM observations, highlight the following important identifying characters of D. gallinae: the prominent shoulders of the dorsal shield and the jagged edges of the shield reticulations, the position of setae j1, s1 and the epigynal pores, and the presence on tibia IV pl of one seta. Additional micrographs highlighting the shape of the dorsal (abruptly narrowed posteriorly) and epigynal (narrowly rounded posteriorly) shields and the chelicera (elongate, with distinct digits) of O. sylviarum enable its differentiation from D.gallinae.ConclusionThe photographic support provided here (both LM and SEM pictures) can be considered a practical tool for scientists who are not well acquainted with the morphology of D.gallinae, and who are involved with classical and molecular systematics, veterinary and human health aspects of poultry red mites.

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Section: Discussionmentioning

confidence: 99%

A gallery of the key characters to ease identification of Dermanyssus gallinae (Acari: Gamasida: Dermanyssidae) and allow differentiation from Ornithonyssus sylviarum (Acari: Gamasida: Macronyssidae)

et al. 2012

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“…O sylviarum and D gallinae are found in the commercial poultry industry, but uncommonly, pet birds can harbor them (R. Stevenson, personal communication, 2007). [42][43][44] In humans, mites can cause an intensely pruritic, papular-papulovesicular eruption. 42…”

Section: Pasteurellosismentioning

confidence: 99%