Purpose

Larval stages of trombiculid mites infest a wide variety of wild and domestic animals. The most common clinical signs related with the presence of these parasites are alopecia, crusts, erythema, excoriation, erosion, papules, pustules and vesicles. Most of trombiculid infestations may not be perceived by the clinician due to their small size. Although Ericotrombidium ibericense has been recorded on cats, it has not been found on dogs.

Methods

In August 2019, three domestic dogs presenting pruritic dermatological lesions in the ventral area of the body and interdigital spaces were presented at a veterinary clinic in Santarém, central Portugal. Trombiculid mites were extracted from the skin and preserved in 70% ethanol. Specimens were prepared in slides with Hoyer’s medium and observed with optical microscopy.

Results

After morphological examination of the specimens, mites were identified as E. ibericense (Acariformes: Trombiculidae).

Conclusions

Most of the trombiculids recorded in European clinical practice are generally identified as Neotrombicula autumnalis by default, since, in most cases, mites are not examined morphologically. This is the first record of E. ibericense in domestic dogs. More studies are needed to evaluate the distribution of these mites in Portugal. Veterinary clinicians must be aware of this parasitosis, as trombiculids can cause exuberant clinical signs, but are often misdiagnosed.

中文翻译：

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家犬中 Ericotrombidium ibericense 的首次报告。

目的

trombiculid 螨虫的幼虫阶段会感染各种野生和家养动物。与这些寄生虫存在相关的最常见临床症状是脱发、痂皮、红斑、表皮脱落、糜烂、丘疹、脓疱和水疱。大多数 trombiculid 感染可能由于其体积小而不会被临床医生察觉。尽管已经在猫身上发现了伊比利亚毛球虫，但在狗身上还没有发现。

方法

2019 年 8 月，葡萄牙中部圣塔伦的一家兽医诊所出现了三只在身体腹侧区域和指间空间出现瘙痒性皮肤病病变的家犬。从皮肤中提取 Trombiculid 螨并保存在 70% 的乙醇中。用霍耶氏培养基在载玻片上制备标本并用光学显微镜观察。

结果

在对标本进行形态学检查后，螨被鉴定为E. ibericense (Acariformes: Trombiculidae)。

结论

欧洲临床实践中记录的大多数 trombiculids 通常默认被确定为NeotrombiculaAutumnalis，因为在大多数情况下，螨虫没有进行形态学检查。这是家犬E. ibericense的首次记录。需要更多的研究来评估这些螨虫在葡萄牙的分布。兽医临床医生必须意识到这种寄生虫病，因为 trombiculids 会引起强烈的临床症状，但经常被误诊。