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Occupational otitis externa in chicken catchers

¹Department of Occupational Health, Royal Devon and Exeter Hospital (Heavitree), UK.

The Journal of Laryngology and Otology

|April 1, 1997

Summary

Occupational otitis externa is rare, but two poultry workers developed ear infections from red poultry mite (Dermanyssus gallinae) infestations. This highlights a potential, uncommon risk in the poultry industry.

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Area of Science:

Veterinary Entomology
Occupational Health
Dermatology

Background:

Otitis externa, commonly known as swimmer's ear, is an inflammation of the outer ear canal.
While typically associated with water exposure or allergies, occupational causes are infrequently documented.
Ear infestations are even rarer causes of otitis externa.

Observation:

This report details two distinct cases of poultry workers experiencing otitis externa.
The condition in both cases was directly attributed to infestation by Dermanyssus gallinae, the common red poultry mite.
These mites are known ectoparasites typically found on birds.

Findings:

The study confirms Dermanyssus gallinae as a causative agent for occupational otitis externa.
It demonstrates that direct contact with infested poultry or environments can lead to ear canal infestation.
The clinical presentation in these cases was consistent with severe external otitis.

Implications:

Poultry workers are identified as a potentially at-risk group for this specific type of occupational dermatitis.
Awareness among healthcare providers is crucial for diagnosing and treating similar cases in agricultural settings.
Preventive measures in poultry handling environments may be necessary to mitigate mite exposure and subsequent ear infections.

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