Emergence of a New Arbovirus Disease in Brazil

Lopes, O. S.; Sacchetta, Lia De Abreu; Francy, D. B.; Jakob, W. L.; Calisher, Charles H.

doi:10.1093/oxfordjournals.aje.a113075

Cited by 47 publications

(10 citation statements)

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“…Not only have more severe VBD outbreaks been reported but outbreaks have occurred in formerly non-endemic countries such as Italy, France and Croatia 10–13 . Furthermore, several arboviruses are circulating in tropical regions of the world, and many more are circulating under the radar 14–19 .…”

Section: Introductionmentioning

confidence: 99%

Community Composition and Year-round Abundance of Vector Species of Mosquitoes make Miami-Dade County, Florida a Receptive Gateway for Arbovirus entry to the United States

Wilke

Vasquez

Medina

et al. 2019

Sci Rep

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Vector-borne diseases are a heavy burden to human-kind. Global warming and urbanization have a significant impact on vector-borne disease transmission, resulting in more severe outbreaks, and outbreaks in formerly non-endemic areas. Miami-Dade County, Florida was the most affected area in the continental United States during the 2016 Zika virus outbreak. Miami is an important gateway and has suitable conditions for mosquitoes year-round. Therefore, it was critical to establish and validate a surveillance system to guide and improve mosquito control operations. Here we assess two years of mosquito surveillance in Miami established after the 2016 Zika virus outbreak. Our results show that the most abundant mosquito species are either well adapted to urban environments or are adapting to it. The five most abundant species comprised 85% of all specimens collected, with four of them being primary vectors of arboviruses. Aedes aegypti and Culex quinquefasciatus were found year-round throughout Miami regardless of urbanization level, vegetation, or socioeconomic variations. This study serves as a foundation for future efforts to improve mosquito surveillance and control operations.

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Section: Introductionmentioning

confidence: 99%

Community Composition and Year-round Abundance of Vector Species of Mosquitoes make Miami-Dade County, Florida a Receptive Gateway for Arbovirus entry to the United States

Wilke

Vasquez

Medina

et al. 2019

Sci Rep

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“…ROCV was also isolated from a wild bird, Zonotrichia capensis, and wild birds are considered to be amplifi er vertebrate hosts of this virus. Additionally, ROCV was also isolated from the mosquito species Psorophora ferox, and Aedes scapularis is likely another mosquito species involved in ROCV transmission 19,20 . The factors responsible for the appearance and disappearance of this virus are unknown.…”

mentioning

confidence: 99%

A Saint Louis encephalitis and Rocio virus serosurvey in Brazilian horses

Silva

Romeiro

Souza

et al. 2014

Rev. Soc. Bras. Med. Trop.

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“…ROCV was responsible for several epidemics of severe encephalitis in Brazil in the 1970s [10, 11, 17, 44]. A case fatality rate of 10% and long-term sequelae in 20% of the surviving patients were reported.…”

Section: Discussionmentioning

confidence: 99%

“…mosquitoes (particularly Ps. ferox ) with birds implicated as principal reservoir hosts [2, 12, 17, 19, 31, 34]. Most other Ntaya group viruses are primarily maintained in transmission cycles between Culex spp.…”

Section: Discussionmentioning

confidence: 99%

Complete genome sequence of T’Ho virus, a novel putative flavivirus from the Yucatan Peninsula of Mexico

Briese

Loroño-Pino

Garcia-Rejon

et al. 2017

Virol J

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BackgroundWe previously reported the discovery of a novel, putative flavivirus designated T’Ho virus in Culex quinquefasciatus mosquitoes in the Yucatan Peninsula of Mexico. A 1358-nt region of the NS5 gene was amplified and sequenced but an isolate was not recovered.ResultsThe complete genome of T’Ho virus was sequenced using a combination of unbiased high-throughput sequencing, 5′ and 3′ rapid amplification of cDNA ends, reverse transcription-polymerase chain reaction and Sanger sequencing. The genome contains a single open reading frame of 10,284 nt which is flanked by 5′ and 3′ untranslated regions of 97 and 556-nt, respectively. Genome sequence alignments revealed that T’Ho virus is most closely related to Rocio virus (67.4% nucleotide identity) and Ilheus virus (65.9%), both of which belong to the Ntaya group, followed by other Ntaya group viruses (58.8–63.3%) and Japanese encephalitis group viruses (62.0–63.7%). Phylogenetic inference is in agreement with these findings.ConclusionsThis study furthers our understanding of flavivirus genetics, phylogeny and diagnostics. Because the two closest known relatives of T’Ho virus are human pathogens, T’Ho virus could be an unrecognized cause of human disease. It is therefore important that future studies investigate the public health significance of this virus.

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Emergence of a New Arbovirus Disease in Brazil

Cited by 47 publications

References 0 publications

Community Composition and Year-round Abundance of Vector Species of Mosquitoes make Miami-Dade County, Florida a Receptive Gateway for Arbovirus entry to the United States

Community Composition and Year-round Abundance of Vector Species of Mosquitoes make Miami-Dade County, Florida a Receptive Gateway for Arbovirus entry to the United States

A Saint Louis encephalitis and Rocio virus serosurvey in Brazilian horses

Complete genome sequence of T’Ho virus, a novel putative flavivirus from the Yucatan Peninsula of Mexico

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