First identification of a patent pentastomid pulmonary (Raillietiella orientalis) infection in a captive Meller's chameleon (Trioceros melleri) in Germany

IF 2.2 3区医学 Q3 ECOLOGY

International Journal for Parasitology-Parasites and Wildlife Pub Date : 2025-02-03 DOI:10.1016/j.ijppaw.2025.101045

Paula Sapion-Miranda , David Ebmer , Edwin Kniha , Julia Walochnik , Saskia Dreyer , Dominik Fischer , Lisa Grund , Anja Taubert , Carlos Hermosilla , Malek J. Hallinger

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Abstract

A female, zoo-housed, adult Meller's giant one-horned chameleon (Trioceros melleri) showed clinical symptoms including halitosis, obstipation, dysecdysis and shed pentastomid eggs with the faeces. After a patent pentastomiasis was diagnosed, the chameleon's condition worsened after repeated ivermectin treatments, and the animal was euthanized due to animal welfare reasons. The necropsy revealed that the lungs were infected with 29 adult pentastomid specimens. Based on morphological and ultrastructural characteristics pentastomids were identified as Raillietiella orientalis. Additionally, this species identification was confirmed by DNA sequencing (18S rRNA).

Pentastomid-infected insects, such as cockroaches, might play an important role in the transmission of R. orientalis as suitable obligate intermediate hosts. Another crucial factor to be considered is the importation of wild caught individuals, providing a potential source for numerous emerging infectious disease transmissions and parasite spillovers.

This is the first report, to the best of our knowledge, on a patent pulmonary R. orientalis infection in a captive chameleon. We call for further investigations on neglected pentastomid infections in chameleons and lizards kept as pets to better understand implications of this new host record and its possible role in transmission of emerging pentastomiasis.

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首次在德国圈养的梅勒变色龙（Trioceros melleri）中鉴定出一种未专利的五舌状肺（东方铁路杆菌）感染

1只雌性、动物园饲养的成年梅勒巨型独角变色龙（Trioceros melleri）临床症状包括口臭、便秘、呼吸困难，并随粪便排出五角形卵。这只变色龙被诊断出患有戊口病，经过多次伊维菌素治疗后病情恶化，最后由于动物福利原因被安乐死。尸检显示肺部感染了29例成人五形肌标本。基于形态学和超微结构特征，鉴定其为东方铁霉。此外，通过DNA测序（18S rRNA）证实了该物种的鉴定。感染五角形虫的昆虫，如蟑螂，可能作为适宜的专性中间宿主，在东方田鼠的传播中起重要作用。另一个需要考虑的关键因素是野生捕获个体的输入，这为许多新出现的传染病传播和寄生虫溢出提供了潜在来源。据我们所知，这是第一个关于圈养变色龙肺部东方绦虫感染的报告。我们呼吁进一步调查宠物变色龙和蜥蜴中被忽视的五形虫感染，以更好地了解这一新宿主记录的含义及其在新发五形虫病传播中的可能作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal for Parasitology-Parasites and Wildlife Medicine-Infectious Diseases

CiteScore

3.80

自引率

5.60%

发文量

113

审稿时长

45 days

期刊介绍： The International Journal for Parasitology: Parasites and Wildlife (IJP-PAW) publishes the results of original research on parasites of all wildlife, invertebrate and vertebrate. This includes free-ranging, wild populations, as well as captive wildlife, semi-domesticated species (e.g. reindeer) and farmed populations of recently domesticated or wild-captured species (e.g. cultured fishes). Articles on all aspects of wildlife parasitology are welcomed including taxonomy, biodiversity and distribution, ecology and epidemiology, population biology and host-parasite relationships. The impact of parasites on the health and conservation of wildlife is seen as an important area covered by the journal especially the potential role of environmental factors, for example climate. Also important to the journal is ''one health'' and the nature of interactions between wildlife, people and domestic animals, including disease emergence and zoonoses.