scholarly journals Yellow fever virus spread in Rio de Janeiro and Espírito Santo, 2016-2019: Phylodynamic assessment to improve intervention strategies

2019 ◽  
Author(s):  
Marta Giovanetti ◽  
Marcos Cesar Lima de Mendonça ◽  
Vagner Fonseca ◽  
Maria Angélica Mares-Guia ◽  
Allison Fabri ◽  
...  
Keyword(s):  
Public Health ◽  
Real Time ◽  
Yellow Fever ◽  
Rio De Janeiro ◽  
Yellow Fever Virus ◽  
Fever Virus ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Espirito Santo ◽  
Southeastern Region

ABSTRACTThe recent re-emergence of yellow fever virus (YFV) in Brazil has raised serious concerns due to the virus’ rapid dissemination in the southeastern region. To better understand YFV genetic diversity and dynamics during the recent outbreak in southeastern Brazil we generated 18 complete and near-complete genomes from the peak of the epidemic curve from non-human primates (NHPs) and human infected cases across Espírito Santo and Rio de Janeiro states. Genomic sequencing of 18 YFV genomes revealed the timing, source and likely routes of yellow fever virus transmission and dispersion during the one of the largest outbreaks ever registered in Brazil. We showed that the recent YFV epidemic spillover southwards several times from Minas Gerais to Espírito Santo and Rio de Janeiro states in 2016 to 2019. The quick production and analysis of data from portable sequencing could identify the corridor of spread of YFV. These findings reinforce that real-time and continued genomic surveillance strategies can assist in the monitoring and public health responses of arbovirus epidemics.IMPORTANCEArbovirus infections in Brazil including Yellow Fever, Dengue, Zika and Chikungunya result in considerable morbidity and mortality and are pressing public health concerns. However, our understanding of these outbreaks is hampered by limited availability of real time genomic data. In this study, we investigated the genetic diversity and spatial distribution of YFV during the current outbreak in southeastern Brazil. To gain insights into the routes of YFV introduction and dispersion, we tracked the virus by sequencing YFV genomes sampled from non-human primates and infected patients from the southeastern region. Our study provides an understanding of how YFV initiates transmission in new Brazilian regions and illustrates that near-real time genomics in the field can augment traditional approaches to infectious disease surveillance and control.

scholarly journals Yellow Fever Virus Reemergence and Spread in Southeast Brazil, 2016–2019

2019 ◽  
Vol 94 (1) ◽  
Author(s):  
Marta Giovanetti ◽  
Marcos Cesar Lima de Mendonça ◽  
Vagner Fonseca ◽  
Maria Angélica Mares-Guia ◽  
Allison Fabri ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Yellow Fever ◽  
Rio De Janeiro ◽  
Nonhuman Primates ◽  
Yellow Fever Virus ◽  
Genomic Data ◽  
Fever Virus ◽  
Southeastern Brazil ◽  
Espirito Santo ◽  
Southeastern Region

ABSTRACT The recent reemergence of yellow fever virus (YFV) in Brazil has raised serious concerns due to the rapid dissemination of the virus in the southeastern region. To better understand YFV genetic diversity and dynamics during the recent outbreak in southeastern Brazil, we generated 18 complete and nearly complete genomes from the peak of the epidemic curve from nonhuman primates (NHPs) and human infected cases across the Espírito Santo and Rio de Janeiro states. Genomic sequencing of 18 YFV genomes revealed the estimated timing, source, and likely routes of yellow fever virus transmission and dispersion during one of the largest outbreaks ever registered in Brazil. We showed that during the recent epidemic, YFV was reintroduced from Minas Gerais to the Espírito Santo and Rio de Janeiro states multiple times between 2016 and 2019. The analysis of data from portable sequencing could identify the corridor of spread of YFV. These findings reinforce the idea that continued genomic surveillance strategies can provide information on virus genetic diversity and transmission dynamics that might assist in understanding arbovirus epidemics. IMPORTANCE Arbovirus infections in Brazil, including yellow fever, dengue, zika, and chikungunya, result in considerable morbidity and mortality and are pressing public health concerns. However, our understanding of these outbreaks is hampered by the limited availability of genomic data. In this study, we investigated the genetic diversity and spatial distribution of YFV during the current outbreak by analyzing genomic data from areas in southeastern Brazil not covered by other previous studies. To gain insights into the routes of YFV introduction and dispersion, we tracked the virus by sequencing YFV genomes sampled from nonhuman primates and infected patients from the southeastern region. Our study provides an understanding of how YFV initiates transmission in new Brazilian regions and illustrates that genomics in the field can augment traditional approaches to infectious disease surveillance and control.

Two new species of Callibaetis Eaton (Ephemeroptera: Baetidae) from Southeastern Brazil

Zootaxa ◽  
2009 ◽  
Vol 2261 (1) ◽  
pp. 23-38 ◽  
Author(s):  
P. V. CRUZ ◽  
F. F. SALLES ◽  
N. HAMADA
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Number Of Species ◽  
Two New Species ◽  
Espirito Santo ◽  
Southeastern Region

Two new species of Callibaetis are described based on nymphs and adults of both genders. Specimens were collected in the states of Rio de Janeiro and Espírito Santo, in the Southeastern region of Brazil. With the description of C. fluminensis sp. n. and C. capixaba sp. n. we increase the number of species in the genus Callibaetis in Brazil to eleven.

scholarly journals Lineage-Specific Real-Time RT-PCR for Yellow Fever Virus Outbreak Surveillance, Brazil

2017 ◽  
Vol 23 (11) ◽  
pp. 1867-1871 ◽  
Author(s):  
Carlo Fischer ◽  
Maria C. Torres ◽  
Pranav Patel ◽  
Andres Moreira-Soto ◽  
Ernest A. Gould ◽  
...  
Keyword(s):  
Real Time ◽  
Yellow Fever ◽  
Yellow Fever Virus ◽  
Fever Virus ◽  
Rt Pcr

THE TADPOLE OF ZACHAENUS CARVALHOI IZECKSOHN, 1983 (ANURA: CYCLORAMPHIDAE)

Zootaxa ◽  
2019 ◽  
Vol 4668 (1) ◽  
pp. 145-147 ◽  
Author(s):  
DIEGO ALMEIDA-SILVA ◽  
VIVIAN CÉLIA DE OLIVEIRA ROCHA-BARROS ◽  
RODRIGO BARBOSA FERREIRA ◽  
VANESSA KRUTH VERDADE
Keyword(s):  
Larval Development ◽  
Leaf Litter ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Reproductive Mode ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Morphological Aspects ◽  
Forest Remnants ◽  
Espirito Santo

The genus Zachaenus Cope is the least specious within Cycloramphidae, including two species: Z. carvalhoi Izecksohn, and Z. parvulus (Girard). Both are leaf litter species distributed across Atlantic forest remnants in Southeastern Brazil. Zachaenus carvalhoi occurs westerly in the states of Espírito Santo and Minas Gerais, and Z. parvulus easterly in the states of São Paulo, Rio de Janeiro, and Espírito Santo (Verdade et al. 2009; Motta et al. 2010; Salles & Maciel 2010; Oliveira et al. 2012; Guedes et al. 2019; Frost 2019). Both species build terrestrial nests, and larval development is endotrophic nidicolous (reproductive mode 21 after Haddad & Prado 2005; Lutz 1944; Thibaudeau & Altig 1999; Zocca et al. 2014). In this work, we describe the tadpoles of Z. carvalhoi, and discuss morphological aspects regarding other endotrophic tadpoles. 

Genomic evidence of yellow fever virus in Aedes scapularis, southeastern Brazil, 2016

Acta Tropica ◽  
2020 ◽  
Vol 205 ◽  
pp. 105390 ◽  
Author(s):  
Mariana Sequetin Cunha ◽  
Nuno Rodrigues Faria ◽  
Giovana Santos Caleiro ◽  
Darlan Silva Candido ◽  
Sarah C. Hill ◽  
...  
Keyword(s):  
Yellow Fever ◽  
Yellow Fever Virus ◽  
Fever Virus ◽  
Southeastern Brazil

Two new species of Dilobopterus Signoret, 1850 and the male of D. segmentalis (Signoret, 1853) from Southeastern Brazil, with taxonomic notes on the genus (Hemiptera: Cicadellidae: Cicadellini)

Zootaxa ◽  
2017 ◽  
Vol 4281 (1) ◽  
pp. 127
Author(s):  
VICTOR QUINTAS ◽  
MÁRCIO FELIX ◽  
DOUGLAS FELIPE DOS SANTOS LIMA ◽  
GABRIEL MEJDALANI
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
New World ◽  
Atlantic Rainforest ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Two New Species ◽  
Espirito Santo ◽  
Janeiro State ◽  
Unknown Male

Two new species of Dilobopterus Signoret, 1850 are described from the Atlantic Rainforest of Rio de Janeiro State, Southeastern Brazil, based on specimens collected in Angra dos Reis (D. nelsoni sp. nov.) and Itatiaia (D. sakakibara sp. nov.). Holotypes are deposited in Museu Nacional, Universidade Federal do Rio de Janeiro. These are the first species of the genus described after the publication in 1977 of the last comprehensive monograph on the New World Cicadellini. We also describe the previously unknown male of D. segmentalis (Signoret, 1853) based on specimens from the Atlantic Rainforest of Espírito Santo State, Southeastern Brazil (municipality of Santa Teresa). We propose a group of species within Dilobopterus (trinotatus group) based on features of the paraphyses of D. trinotatus (Signoret, 1853), D. segmentalis, and D. sakakibara sp. nov.. 

Yellow fever virus real-time RT-PCR v1 (protocols.io.rszd6f6)

protocols.io ◽  
2018 ◽  
Author(s):  
Judy Northill ◽  
Alyssa Pyke ◽  
Ian Mackay
Keyword(s):  
Real Time ◽  
Yellow Fever ◽  
Yellow Fever Virus ◽  
Fever Virus ◽  
Rt Pcr

scholarly journals Rediscovery of Lonchophylla bokermanni Sazima, Vizotto and Taddei, 1978 (Chiroptera: Phyllostomidae: Lonchophyllinae) in Minas Gerais, and new records for Espírito Santo, southeastern Brazil

Check List ◽  
2013 ◽  
Vol 9 (5) ◽  
pp. 1046 ◽  
Author(s):  
Maria Clara do Nascimento ◽  
Leonardo Henrique Dias ◽  
Renato Gregorin ◽  
Gisele Lessa
Keyword(s):  
Rio De Janeiro ◽  
New Records ◽  
Minas Gerais ◽  
Type Locality ◽  
Atlantic Rainforest ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
New Localities ◽  
Espirito Santo ◽  
Range Of Values

We report the rediscovery of Lonchophylla bokermanni – a species threatened by extinction in Brazil – in Minas Gerais after 25 years (where it was known only from the type-locality), and add three new localities from Espírito Santo, southeastern Brazil. The external and craniodental measurements of the additional specimens fall within the expected range of values for L. bokermanni, although specimens from the Atlantic Rainforest (Rio de Janeiro and Espírito Santo) show a tendency to be smaller.

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