Arthropod-borne viruses (arboviruses) are a significant public health threat, especially in tropical and subtropical regions. More than 150 arboviruses can cause febrile illness following infection in humans. The Brazilian Amazon region has the highest number of arboviruses detected worldwide.
View Article and Find Full Text PDFViruses were identified from male anthropophilic mosquitoes from Mato Grosso (MT) State, Midwest Brazil from February 2017 to January 2018. Mosquitoes tested included Aedes (Stegomyia) aegypti (1139 males; 84 pools), Culex quinquefasciatus (9426 males; 179 pools), Culex sp. (3 males; 3 pools) and Psorophora albigenu (1 male; 1 pool) collected from four cities of MT.
View Article and Find Full Text PDFFront Microbiol
August 2020
Noroviruses (NoVs) are enteric viruses that cause acute gastroenteritis, and the pandemic GII.4 genotype is spreading and evolving rapidly. The recombinant GII.
View Article and Find Full Text PDFBackground: Chikungunya virus (CHIKV) emerged in the Americas in 2013 and has caused approximately 2.1 million cases and >600 deaths. A retrospective investigation was undertaken to describe clinical, epidemiological, and viral genomic features associated with deaths caused by CHIKV in Ceará state, northeast Brazil.
View Article and Find Full Text PDFWe report the complete genome sequencing of human papillomavirus 71 from Latin America (Brazil).
View Article and Find Full Text PDFInfect Genet Evol
April 2020
The HTLV-1 is the first human retrovirus and is associated with several clinical syndromes, however, the pathogenesis of these clinical manifestations is still not fully understood. Furthermore, there are few complete genomes publicly available, about 0.12 complete genomes per 10,000 infected individuals and the databases have a major deficiency of sequences information.
View Article and Find Full Text PDFAIDS Res Hum Retroviruses
February 2020
Currently only four genome sequences for spp. are publicly available, and information on the genetic properties of cyanobacteria belonging to this genus is limited. In this study, we report the draft genome of sp.
View Article and Find Full Text PDFOpsoclonus-myoclonus-ataxia syndrome (OMAS) is a rare neurological disorder characterized by irregular multidirectional eye movements, myoclonus, cerebellar ataxia, sleep disturbances, and cognitive dysfunction. Although most commonly related to paraneoplastic syndrome, this condition has occasionally been described following infectious illnesses. This article reports the first case of OMAS in association with chikungunya and dengue virus co-infection.
View Article and Find Full Text PDFGenome Announc
July 2017
In order to increase the genomic data of cyanobacterial strains isolated in Brazil, we hereby present the draft genome sequence of the sp. strain CACIAM 70d, isolated from an Amazonian freshwater environment. This report describes the first genome available for this genus.
View Article and Find Full Text PDFThis is the first announcement of two nearly complete viral genome sequences belonging to the Guama serogroup (genus , family ) isolated in the Brazilian Amazon region: (MIRV; BEAN7722) and (ANUV; BEAN109303).
View Article and Find Full Text PDFJ Gen Virol
April 2017
The genus Phlebovirus includes the sandfly fever viruses and tick-transmitted uukuviruses. Sandfly fever group viruses have been isolated from various vertebrate species and from phlebotomines and occasionally alternative arthropods, e.g.
View Article and Find Full Text PDFGenome Announc
November 2016
Given its toxigenic potential, Microcystis aeruginosa is an important bloom-forming cyanobacterium. Here, we present a draft genome and annotation of the strain CACIAM 03, which was isolated from an Amazonian freshwater environment.
View Article and Find Full Text PDFGenome Announc
May 2016
Here, we present a draft genome and annotation of Flavihumibacter sp. CACIAM 22H1, isolated from Bolonha Lake, Brazil, which will provide further insight into the production of substances of biotechnological interest.
View Article and Find Full Text PDFGenome Announc
May 2016
Ecological interactions between cyanobacteria and heterotrophic prokaryotes are poorly known. To improve the genomic studies of heterotrophic bacterium-cyanobacterium associations, the draft genome sequence (3.2 Mbp) of Limnobacter sp.
View Article and Find Full Text PDFWe report here nearly complete genome sequence of Inhangapi virus (INHV) strain BEAR177325, which was isolated from a pool of sandflies (Lutzomyia flaviscutellata) in the Utinga neighborhood, Belém (01º28´S 48°27'W), State of Pará, Brazil, in 1969. The genome of this virus showed similarity with members belonging to the family Rhabdoviridae.
View Article and Find Full Text PDFHaemagogus janthinomys is a mosquito of high importance in public health due its involvement on natural wild cycles of two important arboviruses in the Brazilian Amazon region: Yellow Fever virus (Flaviviridae, Flavivirus) and Mayaro virus (Togaviridae, Alphavirus). Here, we have sequenced and described all the mitochondrial genes for the Hg. janthinomys species.
View Article and Find Full Text PDFYellow Fever virus (YFV) is an important human pathogen in tropical areas of Africa and South America. Although an efficient vaccine is available and has been used since the early 1940s, sylvatic YFV transmission still occurs in forested areas where anthropogenic actions are present, such as mineral extraction, rearing livestock and agriculture, and ecological tourism. In this context, two distinct techniques based on the RT-PCR derived method have been previously developed, however both methods are expensive due to the use of thermo cyclers and labeled probes.
View Article and Find Full Text PDFWe describe here the nearly complete open reading frame (ORF) of five Gamboa virus strains isolated in Panama and Argentina. The viruses with complete ORF showed the regular genome organization observed in other orthobunyaviruses with exception to the presence of NSs protein. All predicted proteins showed homology with viruses belonging to members of the family Bunyaviridae.
View Article and Find Full Text PDFNearly complete genome sequences for three ungrouped viruses, Pacui virus (BEAN27326), Rio Preto da Eva virus (BEAR540870), and Tapirape virus (BEAN767592) isolated in the Amazon region are reported here. All three genomic segments (small, medium and large RNA) were recovered and were similar to members of the genus Orthobunyavirus.
View Article and Find Full Text PDFThe genus Orbivirus of the family Reoviridae comprises 22 virus species including the Changuinola virus (CGLV) serogroup. The complete genome sequences of 13 CGLV serotypes isolated between 1961 and 1988 from distinct geographical areas of the Brazilian Amazon region were obtained. All viral sequences were obtained from single-passaged CGLV strains grown in Vero cells.
View Article and Find Full Text PDFC-type lectin DC-SIGN receptor, encoded by CD209, plays a key role in the infection of dendritic cells by dengue virus (DENV). Because the -336A/G SNP (rs4804803) polymorphism in the promoter of CD209 modulates DC-SIGN expression, we investigated the putative association of this polymorphism with DENV infection and its pathogenesis. A control sample of 72 individuals, rigorously selected through a clinical investigation for absence of past dengue fever (DF) was compared to a sample of 168 patients (156 classical DF; 12 dengue hemorrhagic fever), all residents from Pará, Brazil.
View Article and Find Full Text PDFAntimicrob Agents Chemother
May 2014
We sequenced the oldest blaKPC-2-bearing plasmid isolated in Brazil and another plasmid also carried by a Klebsiella pneumoniae strain of sequence type 442 (ST442), isolated 52 months later. Both plasmids present an IncN backbone and few acquired regions. Because the 2005 plasmid presented deletions and a truncated gene within Tn4401b compared to the 2009 plasmid, we can thus infer that IncN blaKPC-2-bearing plasmids pFCF1305 and pFCF3SP had a common ancestor circulating in Brazil prior to May 2005.
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