DANIELLE ELISE GILL
Projetos de Pesquisa
Unidades Organizacionais
LIM/46 - Laboratório de Parasitologia Médica, Hospital das Clínicas, Faculdade de Medicina
3 resultados
Resultados de Busca
Agora exibindo 1 - 3 de 3
- Guapiacu virus, a new insect-specific flavivirus isolated from two species of Aedes mosquitoes from Brazil(2021) RIBEIRO, Geovani de Oliveira; COSTA, Antonio Charlys da; GILL, Danielle Elise; RIBEIRO, Edcelha Soares D'Athaide; REGO, Marlisson Octavio da S.; MONTEIRO, Fred Julio Costa; VILLANOVA, Fabiola; NOGUEIRA, Juliana Silva; MAEDA, Adriana Yurika; SOUZA, Renato Pereira de; TAHMASEBI, Roozbeh; MORAIS, Vanessa S.; PANDEY, Ramendra Pati; RAJ, V. Samuel; SCANDAR, Sirle Abdo Salloum; VASAMI, Fernanda Gisele da Silva; D'AGOSTINO, Leandro Guaraglia; MAIORKA, Paulo Cesar; DENG, Xutao; NOGUEIRA, Mauricio Lacerda; SABINO, Ester Cerdeira; DELWART, Eric; LEAL, Elcio; CUNHA, Mariana SequetinClassical insect-flaviviruses (cISFVs) and dual host-related insect-specific flavivirus (dISFV) are within the major group of insect-specific flavivirus. Remarkably dISFV are evolutionarily related to some of the pathogenic flavivirus, such as Zika and dengue viruses. The Evolutionary relatedness of dISFV to flavivirus allowed us to investigate the evolutionary principle of host adaptation. Additionally, dISFV can be used for the development of flavivirus vaccines and to explore underlying principles of mammalian pathogenicity. Here we describe the genetic characterization of a novel putative dISFV, termed Guapiacu virus (GUAPV). Distinct strains of GUAPV were isolated from pools of Aedes terrens and Aedes scapularis mosquitoes. Additionally, we also detected viral GUAPV RNA in a plasma sample of an individual febrile from the Amazon region (North of Brazil). Although GUAPV did not replicate in tested mammalian cells, 3 ' UTR secondary structures duplication and codon usage index were similar to pathogenic flavivirus.
- Plasma virome of 781 Brazilians with unexplained symptoms of arbovirus infection include a novel parvovirus and densovirus(2020) FAHSBENDER, Elizabeth; DA-COSTA, Antonio Charlys; GILL, Danielle Elise; MILAGRES, Flavio Augusto de Padua; BRUSTULIN, Rafael; MONTEIRO, Fred Julio Costa; REGO, Marlisson Octavio da Silva; RIBEIRO, Edcelha Soares D'Athaide; SABINO, Ester Cerdeira; DELWART, EricPlasma from patients with dengue-like symptoms was collected in 2013 to 2016 from the Brazilian states of Tocantins and Amapa. 781 samples testing negative for IgM against Dengue, Zika, and Chikungunya viruses and for flaviviruses, alphaviruses and enteroviruses RNA using RT-PCRs were analyzed using viral metagenomics. Viral particles-associated nucleic acids were enriched, randomly amplified, and deep sequenced in 102 mini-pools generating over 2 billion reads. Sequence data was analyzed for the presence of known and novel eukaryotic viral reads. Anelloviruses were detected in 80%, human pegivirus 1 in 19%, and parvovirus B19 in 17% of plasma pools. HIV and enteroviruses were detected in two pools each. Previously uncharacterized viral genomes were also identified, and their presence in single plasma samples confirmed by PCR. Chapparvovirus and ambidensovirus genomes, both in the Parvoviridae family, were partially characterized showing 33% and 34% identity in their NS1 sequences to their closest relative. Molecular surveillance using pre-existing plasma from febrile patients provides a readily scalable approach for the detection of novel, potentially emerging, viruses.
- Near full length genome of a recombinant (E/D) cosavirus strain from a rural area in the central region of Brazil(2018) COSTA, Antonio Charlys da; LUCHS, Adriana; MILAGRES, Flavio Augusto de Padua; KOMNINAKIS, Shirley Vasconcelos; GILL, Danielle Elise; LOBATO, Marcia Cristina Alves Brito Sayao; BRUSTULIN, Rafael; CHAGAS, Rogerio Togisaki das; ABRAO, Maria de Fatima Neves dos Santos; SOARES, Cassia Vitoria de Deus Alves; DENG, Xutao; SABINO, Ester Cerdeira; DELWART, Eric; LEAL, ElcioIn the present article we report the nearly full length genome of a Cosavirus strain (BRTO-83) isolated from a child with acute gastroenteritis, and who is an inhabitant of a rural area in the central region of Brazil. The sample was previously screened and negative for both: common enteric viruses (i.e. rotavirus and norovirus), bacteria, endoparasites and helminthes. Evolutionary analysis and phylogenetic inferences indicated that the Brazilian BRTO-83 Cosavirus strain was a recombinant virus highly related to the E/D recombinant NG385 strain (Genbank JN867757), which was isolated in Nigeria from an acute flaccid paralysis patient. This is the first report of a recombinant E/D Cosavirus strain detected in Brazil, and the second genome described worldwide. Further surveillance and molecular studies are required to fully understand the epidemiology, distribution and evolution of the Cosavirus.