Ornithonyssus [Acari: Macronyssidae] mite dermatitis in poultry field-workers in Almarg, Qalyobiya governorate

Cutaneous manifestations of bird and rat mite infestation in man are not easily recognized by physicians or patients. Clinical signs and symptoms are developed secondary to bites of mites that have infested rats, domestic poultry or birds nesting in or near human habitation and comes into contact with man. This study details 4 cases of pruritic dermatitis developed in four field workers in poultry farms in El-Marg district, Qalyoubia governorate, Egypt. The zoonotic species of Ornithonyssus sp., [Family Macronyssidae] was isolated from all samples collected from patients' habitat and the role played by Ornithonyssus mites in causing dermatitis in man was discussed