Dataset Information

Aspergillosis in free-ranging aquatic birds.

ABSTRACT: Due to the difficulty in the access to free-ranging birds, data regarding Aspergillus infections in wild avian species is rare compared to captive wild and domestic birds. OBJECTIVE:report three cases of Aspergillus section Fumigati causing fungal disease in free-ranging aquatic birds, with the identification of the causal agent to the species level. CASE REPORTS:The diagnosis of aspergillosis was performed by macroscopic lesions found during the necropsy and confirmed by culture. Molecular identification by partial sequencing of the calM and benA genes allowed to confirm Aspergillus fumigatus sensu stricto as the etiological agent of aspergillosis in Procellaria aequinoctialis (White-chinned petrel) (n = 1), Nannopterum brasilianus (Neotropical cormorant) (n = 1) and Chroicocephalus maculipennis (Brown-hooded gull) (n = 1). CONCLUSION:Larger studies regarding the importance of aspergillosis in free-ranging aquatic birds are necessary, as well as it potential role in the One Heath context.

SUBMITTER: Melo AM

PROVIDER: S-EPMC7212181 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Aspergillosis in free-ranging aquatic birds.

Melo Aryse Martins AM Silva-Filho Rodolfo Pinho da RPD Poester Vanice Rodrigues VR von Groll Andrea A Fernandes Cristina Gevehr CG Stevens David A DA Sabino Raquel R Xavier Melissa Orzechowski MO

Medical mycology case reports 20200428

Due to the difficulty in the access to free-ranging birds, data regarding <i>Aspergillus</i> infections in wild avian species is rare compared to captive wild and domestic birds.<h4>Objective</h4>report three cases of <i>Aspergillus</i> section <i>Fumigati</i> causing fungal disease in free-ranging aquatic birds, with the identification of the causal agent to the species level.<h4>Case reports</h4>The diagnosis of aspergillosis was performed by macroscopic lesions found during the necropsy and c ...[more]

PMID: 32405453

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Project description:Avian haemosporidian parasites are widespread and infect birds from a broad variety of avian families with diverse consequences ranging from subclinical infections to severe and fatal disease. This study aimed to determine the occurrence and diversity of avian haemosporidia including associated clinical signs and pathomorphological lesions in captive and free-ranging, wild birds from two zoos and the near environment in Switzerland. Blood samples from 475 birds, including 230 captive and 245 free-ranging, wild individuals belonging to 42 different avian species from 15 orders were examined for the presence of avian haemosporidian DNA by a one-step multiplex PCR designed to simultaneously detect and discriminate the genera Plasmodium, Haemoproteus and Leucocytozoon by targeting mitochondrial genome sequences. Positive samples were additionally tested using a nested PCR targeting the cytochrome b gene of Plasmodium and Haemoproteus. The obtained amplicons were bidirectionally sequenced. This study revealed haemosporidian DNA in 42 samples, belonging to ten host species. The most commonly detected lineage was Plasmodium relictum SGS1, which was identified in 29 birds (Phoenicopterus roseus: n = 24, Alectoris graeca: n = 1, Lamprotornis superbus: n = 1, Somateria mollissima: n = 1, Spheniscus demersus: n = 1, Tetrao urogallus crassirostris: n = 1), followed by Haemoproteus sp. STRURA03 in six avian hosts (Bubo bubo: n = 5, Bubo scandiacus = 1), Plasmodium relictum GRW11 in four individuals (Phoenicopterus roseus: n = 3, Spheniscus demersus: n = 1) and Plasmodium elongatum GRW06 in one Alectura lathami lathami. A Phalacrocorax carbo was infected with Plasmodium relictum, but the exact lineage could not be determined. One mixed infection with P. relictum and Haemoproteus sp. was detected in a Bubo scandiacus. Only five individuals (Spheniscus demersus: n = 2, Somateria mollissima: n = 1, Bubo scandiacus: n = 1, Alectoris graeca: n = 1) showed clinical and pathomorphological evidence of a haemosporidian infection.

Dataset Information

Aspergillosis in free-ranging aquatic birds.

Publications

Aspergillosis in free-ranging aquatic birds.

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