scholarly journals Distinct YFV lineages co-circulated in the Central-Western and Southeastern Brazilian regions from 2015 to 2018

2019 ◽  
Author(s):  
Edson Delatorre ◽  
Filipe Vieira Santos de Abreu ◽  
Ieda Pereira Ribeiro ◽  
Mariela Martínez Gómez ◽  
Alexandre Araújo Cunha dos Santos ◽  
...  
Keyword(s):  
Yellow Fever Virus ◽  
Minas Gerais ◽  
Molecular Signature ◽  
Metropolitan Region ◽  
Effective Control ◽  
Southeastern Brazil ◽  
Urban Centers ◽  
Eastern Area ◽  
Minas Gerais State ◽  
Southwestern Area

AbstractThe current outbreak of yellow fever virus (YFV) that is afflicting Brazil since the end of 2016 probably originated from a re-introduction of YFV from endemic areas into the non-endemic Southeastern Brazil. However, the lack of genomic sequences from endemic regions hinders the tracking of YFV’s dissemination routes. We assessed the origin and spread of the ongoing YFV Brazilian outbreak analyzing a new set of YFV strains infecting humans, non-human primates (NHP) and mosquitoes sampled across five Brazilian states from endemic and non-endemic regions between 2015 and 2018. We found two YFV sub-clade 1E lineages circulating in NHP from Goiás state (GO), resulting from independent viral introductions into the Araguaia tributary river basin: while the strain from 2017 clustered intermingled with Venezuelan YFV strains from 2000, the YFV strain sampled in 2015 clustered with sequences of the current YFV outbreak in the Brazilian Southeastern region (named YFV2015-2018 lineage), displaying the same molecular signature associated to the current YFV outbreak. After its introduction in GO at around mid-2014, the YFV2015-2018 lineage followed two paths of dissemination outside GO, originating two major YFV sub-lineages: 1) the YFVMG/ES/RJ sub-lineage spread sequentially from the eastern area of Minas Gerais state to Espírito Santo and then to Rio de Janeiro states, following the Southeast Atlantic basin; 2) the YFVMG/SP sub-lineage spread from the southwestern area of Minas Gerais to the metropolitan region of São Paulo state, following the Paraná basin. These results indicate the ongoing YFV outbreak in Southeastern Brazil originated from a dissemination event from GO almost two years before its recognition at the end of 2016. From GO this lineage was introduced in Minas Gerais state at least two times, originating two sub-lineages that followed different routes towards densely populated areas. The spread of YFV outside endemic regions for at least four years stresses the imperative importance of the continuous monitoring of YFV to aid decision-making for effective control policies aiming the increase of vaccination coverage to avoid the YFV transmission in densely populated urban centers.

scholarly journals Detection of Yellow Fever Virus in Sylvatic Mosquitoes during Disease Outbreaks of 2017–2018 in Minas Gerais State, Brazil

Insects ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 136 ◽  
Author(s):  
Guilherme Garcia Pinheiro ◽  
Marcele Neves Rocha ◽  
Maria Angélica de Oliveira ◽  
Luciano Andrade Moreira ◽  
José Dilermando Andrade Filho
Keyword(s):  
Yellow Fever ◽  
Yellow Fever Virus ◽  
Disease Outbreaks ◽  
Minas Gerais ◽  
Fever Virus ◽  
Metropolitan Region ◽  
Pcr Analysis ◽  
Urban Centers ◽  
Conservation Units ◽  
Belo Horizonte

Brazil has experienced several arbovirus outbreaks in recent years, among which yellow fever stands out. The state of Minas Gerais faced outbreaks of sylvatic yellow fever in 2017 and 2018, with 1002 confirmed cases and 340 deaths. This work presents the results of survey efforts to detect the yellow fever virus in mosquitoes from two conservation areas in the metropolitan region of Belo Horizonte, Brazil. A total of 867 mosquitoes of 20 species were collected between September 2017 and May 2018, the most abundant being Psorophora (Janthinosoma) ferox (von Humboldt, 1819) (31.3%), Limatus durhamii Theobald, 1901 (19.1%) and Haemagogus (Haemagogus) janthinomys Dyar, 1921 (18.2%). Total RNA was extracted from the mosquitoes for real-time PCR analysis for yellow fever, chikungunya, mayaro, Zika and dengue viruses. The yellow fever infection rate was 8.2% for Hg. janthinomys (13 mosquitoes), which is the main vector of sylvatic yellow fever in Brazil. In addition to surveying the mosquito fauna of these conservation units, this work demonstrates the importance of monitoring the circulation of viruses near large urban centers.

A new species of Microvelia Westwood, 1834 (Hemiptera: Heteroptera: Veliidae) from southeastern Brazil

Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 160-166
Author(s):  
OSÉIAS MARTINS MAGALHÃES ◽  
GUSTAVO LISBOA VIEIRA MACHADO ◽  
MARCO ANTONIO ALVES CARNEIRO ◽  
FELIPE FERRAZ FIGUEIREDO MOREIRA
Keyword(s):  
New Species ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Minas Gerais State ◽  
A New Species

Microvelia joceliae Magalhães & Moreira, sp. nov. is described and illustrated based on material from Parque Natural Municipal das Andorinhas, Minas Gerais State, in southeastern Brazil. The new species can be distinguished from congeners occurring in the region by the pronotum of the apterous form covering almost the entire thorax dorsally, proepisternum with black denticles, male abdominal segments V–VII ventrally depressed, shape of the asymmetrical parameres, and female abdominal laterotergites reflected over the mediotergites and almost touching over segments V–VII. 

scholarly journals Nesting Behaviour of a Neotropical Social Wasp Mischocyttarus saussurei Zikán, 1949 (Hymenoptera, Vespidae)

Sociobiology ◽  
2020 ◽  
Vol 67 (1) ◽  
pp. 121 ◽  
Author(s):  
Lucas Rocha Milani ◽  
Fabio Prezoto ◽  
Mateus Aparecido Clemente ◽  
Patrícia Pereira Gomes ◽  
Marcos Magalhães de Souza
Keyword(s):  
Morphometric Analysis ◽  
Social Wasp ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Morphometric Data ◽  
Ecological Data ◽  
Architectural Pattern ◽  
Minas Gerais State ◽  
Nesting Behaviour

Mischocyttarus saussurei nests show a curious architectural pattern which could be related to colony camouflage. Since information on that species is scarce in literature, this study aimed to record ecological data on M. saussurei, as well as morphometric data on its nests. Data was collected at the Parque Estadual do Ibitipoca state park and at the municipalities of Barroso and Inconfidentes, Minas Gerais state, Southeastern Brazil. Seven colonies were located, exclusively in conserved environments. Five nests were dissected for morphometric analysis and for the assessment of the vegetal matter incorporated to comb walls. Nests showed comb cells opening towards the substrate and covered by vegetal layers, in which three families of mosses and three of liverworts could be identified. We deduct that the nests’ morphometry and the incorporation of vegetal layers to the combs are related to the camouflaging of colonies amidst their substrate.

scholarly journals First record of the Crested Eagle, Morphnus guianensis (Daudin, 1800) (Aves, Accipitridae) in the Cerrado of Minas Gerais state, Brazil

Check List ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 1670 ◽  
Author(s):  
Larissa Lacerda Moraes ◽  
Alexander Zaidan de Souza ◽  
Rômulo Ribon
Keyword(s):  
Atlantic Forest ◽  
New Record ◽  
First Record ◽  
Minas Gerais ◽  
The State ◽  
Southeastern Brazil ◽  
Historical Records ◽  
Minas Gerais State

We present a new record of the Crested Eagle, Morphnus guianensis (Daudin, 1800), a rare forest eagle of the Neotropics on 22 May 2012 at a Cerrado area in Minas Gerais state, southeastern Brazil. The species has only two historical records in the state, both at areas formerly covered by Atlantic Forest. The finding raises the expectations for the maintenance of the species in the state, stressing the fact that this is the first species record in a Cerrado area in Eastern Brazilian states.

A new species of Polyplectropus Ulmer 1905 (Trichoptera: Polycentropodidae) from Minas Gerais State, southeastern Brazil

Zootaxa ◽  
2016 ◽  
Vol 4072 (3) ◽  
pp. 391 ◽  
Author(s):  
ISABELA CRISTINA ROCHA ◽  
LEANDRO LOURENÇO DUMAS ◽  
JORGE LUIZ NESSIMIAN
Keyword(s):  
New Species ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Minas Gerais State ◽  
A New Species

scholarly journals Mammals of Serra do Cipó National Park, southeastern Brazil

Check List ◽  
2012 ◽  
Vol 8 (3) ◽  
pp. 355 ◽  
Author(s):  
E. M. V. C. Câmara ◽  
L. C. Oliveira
Keyword(s):  
National Park ◽  
Minas Gerais ◽  
Red List ◽  
Southeastern Brazil ◽  
Red Lists ◽  
Serra Do Cipó ◽  
Minas Gerais State ◽  
Regional Red Lists ◽  
Mammal Diversity ◽  
Important Site

The mammals of the Cerrado (Brazilian Savanna Biome) are still poorly known; only a few localities have been properly surveyed and studied. Hereby, we present a survey of the mammals of Serra do Cipó National Park, a protected area of Cerrado in Minas Gerais State, southeastern Brazil. A total of 55 species from eight orders were listed, which have been captured, observed or recorded in the literature. Some mammals are endemic or listed as threatened either by IUCN’s red list or by the national and regional red lists. Serra do Cipó National Park is an important site for scientific research and conservation of Minas Gerais’ biodiversity, though there is little information on mammal diversity and distribution in the park. We hope our study can help us fill this gap and improve the effectiveness of this national park in protecting Cerrado mammals and other vertebrates.

scholarly journals Seasonal Variation and Frequency Distribution of Ectoparasites in Crossbreed Cattle in Southeastern Brazil

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Maria do Socorro Ferraz da Costa ◽  
Marcos Pezzi Guimarães ◽  
Walter dos Santos Lima ◽  
Ana Julia Ferraz da Costa ◽  
Elias Jorge Facury Filho ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Frequency Distribution ◽  
Minas Gerais ◽  
Climatic Conditions ◽  
Climatic Factor ◽  
Boophilus Microplus ◽  
Field Conditions ◽  
Southeastern Brazil ◽  
Minas Gerais State ◽  
The Mean

The aims of this study were to evaluate the seasonal variation and frequency distribution of Rhipicephalus (Boophilus) microplus, Haematobia irritans, and Dermatobia hominis on crossbred heifers under field conditions in the northeast of Minas Gerais state, southeastern Brazil. From November 2007 to September 2009 (23 months), 40 heifers aged 16.6±2.4 months were divided into groups A (1/4 Holstein × 3/4 Gir) and B (1/2 Holstein × 1/2 Gir) and had the monthly infestation estimated along with the climatic conditions. The mean maximum and minimum temperatures were 28.5 and 19°C, respectively. The ectoparasites were present on animals in all months of the year. The levels of ticks on the animals were low (3.0±0.2 ticks/animal), with the highest density in midwinter. The temperature was the climatic factor that most influenced the tick levels. The population of H. irritans (13.9±0.3 flies/animal) and D. hominis (1.5±0.2 larvae/animal) on heifers was more influenced by rainfall and exhibited two population peaks during the year. 1/2 Holstein heifers harbored significantly more H. irritans and D. hominis than 1/4 Holstein heifers. The results are discussed considering the most appropriate periods to apply ectoparasiticides and the genetic make-up of the animals.

scholarly journals Species richness of anthophilous butterflies of an Atlantic Forest fragment in Southeastern Brazil

Revista CERES ◽  
2012 ◽  
Vol 59 (5) ◽  
pp. 571-579 ◽  
Author(s):  
Kelen Coelho Cruz ◽  
Sileimar Maria Lelis ◽  
Mariana Aparecida Silva Godinho ◽  
Rúbia Santos Fonseca ◽  
Paulo Sérgio Fiúza Ferreira ◽  
...  
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Minas Gerais ◽  
The State ◽  
Southeastern Brazil ◽  
Forest Fragment ◽  
Semideciduous Forest ◽  
Minas Gerais State ◽  
First Time

The objectives of this study were to identify anthophilous butterflies on psychophilous flowers of four Asteraceae species in an Atlantic Forest fragment in Viçosa, Minas Gerais State, Southeastern Brazil, and to determine whether there are species in common with other lepidopteran inventories of the Southeastern and Midwestern regions of Brazil. It is the first inventory of anthophilous butterflies of a semideciduous forest fragment in Zona da Mata, State of Minas Gerais. A total of 108 species were recorded, representing the fourth largest lepidopteran survey in this State. The results demonstrated that Asteraceae species may be important tools for monitoring anthophilous butterflies. The similarity with other inventories ranged from 1 to 92.55%. Fifteen species were reported for the first time in the State of Minas Gerais, and among them, Melanis alena and Thisbe irenea were observed in this study only.

Parasitism by Helminths in Eurolophosaurus nanuzae (Lacertilia: Tropiduridae) in an Area of Rocky Outcrops in Minas Gerais State, Southeastern Brazil

2003 ◽  
Vol 37 (4) ◽  
pp. 736-741 ◽  
Author(s):  
Angélica F. Fontes ◽  
Joaquim J. Vicente ◽  
Mara C. Kiefer ◽  
Monique Van Sluys
Keyword(s):  
Minas Gerais ◽  
Southeastern Brazil ◽  
Minas Gerais State ◽  
Rocky Outcrops

A new species of Philodendron (Araceae) from an enclave of Atlantic rainforest in Minas Gerais State, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 452 (3) ◽  
pp. 217-223
Author(s):  
LUANA S.B. CALAZANS
Keyword(s):  
New Species ◽  
Minas Gerais ◽  
Atlantic Rainforest ◽  
Southeastern Brazil ◽  
Minas Gerais State ◽  
A New Species

During a field expedition in the Reserva Biológica da Mata Escura, an enclave of Atlantic Rainforest in Minas Gerais State, Southeastern Brazil, a remarkable new species of Philodendron was found. Here the new species is described, illustrated and compared to morphologically close species.

Sign in / Sign up

Export Citation Format

Share Document