A review of Sarcocystis spp. shed by opossums (Didelphis spp.) in Brazil

Valadas, Samantha Yuri Oshiro Branco; Soares, Rodrigo Martins; Lindsay, David S.

doi:10.11606/issn.1678-4456.v53i3p214-226

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…The presence of DNA of parasites of genre Sarcocystis, in the present study, suggests these birds as intermediate host and also deduces that probably became infected by ingestion of contaminated water or food containing oocysts or Sarcocystis. Omnivorous or carnivorous birds have been identified as definitive hosts for Sarcocystis (Valadas et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Toxoplasma gondii, Neospora caninum and Sarcocystis spp. in species of naturally infected birds

Alves,

Fernandes,

Bräunig

et al. 2022

Pesq. Vet. Bras.

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Toxoplasma gondii, Neospora caninum and Sarcocystis spp. are parasites detected in tissues of domestic and wild animals. Birds are relevant in the life cycle and epidemiology of protozoa due to the wide variety of bird species, feeding and migratory habits. The aim of this study was the molecular detection of T. gondii, N. caninum and Sarcocystis spp. in several species of naturally infected birds. Therefore, samples of brain and heart tissue were collected from birds received and necropsied at the Central Laboratory for the Diagnosis of Avian Pathologies (LCDPA), undergoing DNA extraction and amplification by the polymerase chain reaction (PCR) of the 18S rRNA gene to Sarcocystis spp., NC5 gene for N. caninum and repetitive gene 529 base pairs for T. gondii. N. caninum was detected in two birds (02/65, 3.07%), in a brain sample of Rupornis magnisrostris (accession number: ON182081, 267pb) and in a brain and heart sample of Dendrocygna bicolor (accession number: ON211312, 267pb). DNA of the genus Sarcocystis was detected in three birds (03/65, 4.62%), and in the genetic sequencing Sarcocystis spp. (accession number: MW463929) in brain of Nymphicus hollandicus and Sarcocystis speeri (accession number: MW464125) in brain and heart of Amazona aestiva. Phylogenetic analysis revealed that Sarcocystis spp. formed a clade with Sarcocystis spp. that use skunk (Didelphis aurita) as definitive host and Sarcocystis falcatula that use Moluccan loris (Trichoglossus moluccanus) as intermediate host. S. speeri formed a clade with S. speeri that used Mus musculus as an experimental intermediate host and formed a clade with Sarcocystis columbae, Sarcocystis corvusi, Sarcocystis halieti and Sarcocystis sp. that affect bird species. T. gondii DNA was not detected in any tissue. This is the first report of DNA detection of N. caninum, Sarcocystis spp. and S. speeri in tissue samples for these bird species extending the list of intermediate hosts.

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Section: Discussionmentioning

confidence: 99%

Toxoplasma gondii, Neospora caninum and Sarcocystis spp. in species of naturally infected birds

Alves,

Fernandes,

Bräunig

et al. 2022

Pesq. Vet. Bras.

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“…A escassez no campo de pesquisa referente à sarcosporidiose causada pela S. falcatula em aves exóticas pode ser justificada pelo comportamento hiperagudo que a doença exerce, podendo muitas vezes não ser corretamente diagnosticada clinicamente devido ao curto intervalo de tempo entre a manifestação clínica e o óbito do animal, como observado neste relato (Valadas et al, 2016).…”

Section: Discussionunclassified

“…A doença possui significativa relevância quando observada suas características de apresentação, comumente gerando um quadro de caráter agudo ou hiperagudo, levando as aves do Velho Mundo a uma morte súbita. O tratamento torna-se dificultado pela escassez de tempo hábil para emprego de terapêutica eficaz, devido à pouca ou ausente sinais clínicos apresentados (Valadas et al, 2016).…”

Section: Introductionunclassified

“…Algumas aves nativas, como a araravermelha (Ara chloropterus) e aves pertencentes às ordens Anseriformes e Galliformes, como os patos e galinhas, respectivamente, são resistentes a afecções causadas por esse protozoário. Essa característica pode ser provinda da coexistência das aves com o hospedeiro definitivo em regiões endêmicas do país (Valadas et al, 2016).…”

Section: Introductionunclassified

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Sarcocystis falcatula em papagaio-do-congo (Psittacus erithacus): relato de caso

et al. 2021

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Sarcocystis falcatula é responsável por prover a doença parasitária sarcosporidiose. O gênero possui cerca de 130 espécies, sendo classificadas quanto a sua patogenicidade. Apresenta-se sob a forma de oocistos, bem como cisto tecidual nos hospedeiros intermediários acometidos, sendo alojados em órgãos diversos, podendo levar o hospedeiro intermediário a óbito súbito sem sinais clínicos prévios. O presente relato tem por objetivo descrever um caso de sarcosporidiose em papagaio-do-congo (Psittacus erithacus). Os fragmentos colhidos foram clivados histologicamente e corados pela coloração padrão H&EConclui-se que é necessária a disposição de mais materiais informativos considerando a popularização da adoção de pets exóticos, garantindo sanidade a estes.

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Leptospira interrogans in bats in Rio Grande do Sul State, Brazil: epidemiologic aspects and phylogeny

et al. 2022

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Leptospirosis is an infectious disease caused by Leptospira spp. and affects animals and humans. Reports of leptospirosis in bats have increased and prompted epidemiological research in Brazil. This study aimed to perform a molecular and epidemiological investigation of pathogenic Leptospira spp. in bat kidneys. The total DNA was extracted from 102 kidney samples from chiropterous of different species and cities in Rio Grande do Sul State (RS), Brazil. The polymerase chain reaction was used to amplify a fragment corresponding to lipL32 gene, which is only present in pathogenic Leptospira spp. lipL32 gene was detected in 22.5% (23/102) of the bat kidney tissues. Phylogenetic analysis showed that L. interrogans is circulating in bats in RS. Most species of the bats collected were insectivores. Pathogenic Leptospira spp. detection in bats demonstrated that these animals participate in the infection chain of leptospirosis and, therefore, may play as reservoirs and disseminators of this microorganism. Thus, it is important to monitor infectious agents, especially with zoonotic potential in bats. Supplementary Information The online version contains supplementary material available at 10.1007/s42770-022-00838-7.

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A review of Sarcocystis spp. shed by opossums (Didelphis spp.) in Brazil

Cited by 5 publications

References 37 publications

Toxoplasma gondii, Neospora caninum and Sarcocystis spp. in species of naturally infected birds

Toxoplasma gondii, Neospora caninum and Sarcocystis spp. in species of naturally infected birds

Sarcocystis falcatula em papagaio-do-congo (Psittacus erithacus): relato de caso

Leptospira interrogans in bats in Rio Grande do Sul State, Brazil: epidemiologic aspects and phylogeny

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