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首页> 外文会议>International Conference on Environmental, Industrial and Applied Microbiology >Invasive infection by Trichosporon mucoides following circovirus infection in a parrot
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Invasive infection by Trichosporon mucoides following circovirus infection in a parrot

机译：在鹦鹉循环感染后Trichosporon粘膜的侵袭感染

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Cryptococcus neoformans, Histoplasma capsulatum, Coccidioides immitis, Blastomyces dermatiditis, Pneumocystis carinii, Aspergillus spp, Candida spp, and other less common fungi have been identified as causative agents of mycotic pneumonia in animals. These agents are often found in immunocompromised hosts, but can cause disease in healthy individuals as well. Pulmonary tissues and secretions constitute an excellent environment for the growth and development of these organisms. The soil is their primary source, being the main reservoir of those agents, which can be acquired by inhalation or skin abrasion.Trichosporon is a natural inhabitant of the soil but can, occasionally, be found as a component of the normal skin mycobiota of animals. It is also found as a saprophytic coloniser of some mucosae like the throat and lower gastrointestinal tract. Although uncommon, Trichosporon has been recently recognised as an opportunistic pathogen that can elicit a potentially fatal systemic infection in immunocompromised hosts. Several cases of disseminated T. mucoides infection have been reported recently but in Portugal no necropsy data or report are available. As far as we know, this report describes the first fatal case of disseminated trichosporosis caused by T. mucoides in a 6 months old immunonocompromised parrot. The animal also revealed to hold an infection due to Circovirus. Avian circovirus infections can cause different clinical manifestations but in all cases a lymphoid depletion is observed, associated to an immunosuppression that favours the appearance of opportunistic secondary infections. Histopathological lesions were suggestive of severe pulmonary infection with intense hyphae proliferation which accumulated in the parabronchi with simultaneous invasion of the blood vessels. T. mucoides was grown on Sabouraud agar with chloramphenicol (BD Diagnostics-254091) and the identification of this fungal species was done both by morphological characterization and biochemical tests (ID 32 C - Biomeriux 32 200). Circovirus was detected by PCR and the amplified fragment was confirmed by sequencing. The parrot tested negative for avian influenza by RT-PCR and for Pacheco's disease virus by PCR.
机译：隐性球菌新族裔，组织荚膜荚膜，可键合酰亚胺酰亚胺，胚乳皮炎，肺炎，肺炎，肺菌，念珠菌，Asperciss SPP，Candida SPP等较少的常见真菌被鉴定为动物中的毒性肺炎的致病药物。这些药剂通常存在于免疫功能突发的宿主中，但也可以在健康个体中引起疾病​​。肺组织和分泌物构成了这些生物的生长和发展的优秀环境。土壤是它们的主要来源，是那些可以通过吸入或皮肤磨损获得的那些药剂的主要储层。丘脑孢是土壤的天然居民，但偶尔可以作为动物的正常皮肤病的组成部分。它也被发现是一些粘膜的嗜胞生殖器，如喉咙和较低的胃肠道。虽然罕见的是，Trichosporon最近被认为是一种机会主义病原体，可以引起免疫功能性宿主中可能致命的全身感染。最近据报道了几种易溶性T.粘液感染病例，但在葡萄牙没有尸检数据或报告。据我们所知，本报告描述了第一个由T.粘膜引起的迁移滴毛症的第一个致命病例，其在6个月的免疫功能下的鹦鹉。该动物还显示出由于圆环病毒而持有感染。禽圆环病毒感染可能导致不同的临床表现，但在所有情况下，观察到淋巴耗尽，与免疫抑制相关，这些抑制有利于机会主义的继发感染的外观。组织病理病变旨在提示严重的肺部感染强烈的菌丝增殖，其在Parabronchi中积累，同时侵袭血管。粘膜在Sabouraugr琼脂上生长含有氯霉素（BD Diagnostics-254091），并且通过形态学表征和生物化学测试进行这种真菌物种的鉴定（ID 32 C - BioMeriux 32 200）。通过PCR检测胃肠病毒，通过测序确认扩增的片段。鹦鹉通过RT-PCR测试禽流感和Pacheco疾病病毒对Pachec的病毒进行了负面测试。

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