Trombidiosis

Trombidiosis, hay scabies, harvest scabies, autumn scabies, autumn scabies, Giesinger bite, Sendlinger bite.

Skin infection caused by autumn mites, especially Neotrombicula autumnalis

Primarily, rodents (e.g. mice) act as reservoirs. In warm temperatures, the larvae can suckle on contact with human skin. In the course, they fall off again. In the course, a stinging reaction shows up.

Fewer hours after exposure, erythematous wheals and macules are visible, which develop into pruritic, erythematous papules or seropapules with discreet haemorrhage over 1-2 days

• Anamnesis: outdoor walk in autumn?
• Clinical picture

• Repellents
• Control of primary hosts (mice)

Spontaneous healing after approx. 2 weeks.

Topical therapy

• Lotio zinci mollis in Unguentum leniens (mixing ratio) 1:2
• Polidocanol (5%) in cold cream several times a day
• Urea lotion cum 2% menthol (sic!) ad libitum several times a day. Attention: cooling strength!
• Mometasone cream, solution, ointment

1. Mendez D, Freeman AB, Spratt DM, Speare R. Pathology of cutaneous trombidiosis caused by larval trombiculid mites in a wild Lesueur's tree frog (Litoria wilcoxii). Aust Vet J 2010;88:328-30.
2. Little SE, Carmichael KP, Rakich PM. Trombidiosis-induced dermatitis in white-tailed deer (Odocoileus virginianus). Vet Pathol 1997;34:350-2.
3. Takahashi M, Misumi H, Urakami H, et al. Trombidiosis in cats caused by the bite of the larval trombiculid mite Helenicula miyagawai (Acari: Trombiculidae). Vet Rec 2004;154:471-2.
4. Winkler A. [New results in the study of trombidiosis. I]. Hautarzt 1953;4:135-8; contd.