Chikungunya: uma arbovirose em estabelecimento e expansão no Brasil

Honório, Nildimar Alves; Câmara, Daniel Cardoso Portela; Calvet, Guilherme Amaral; Brasil, Patrícia

doi:10.1590/0102-311xpe020515

Cited by 95 publications

(99 citation statements)

References 9 publications

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“…fluviatilis by the dengue, chikungunya and Zika viruses. In addition, there is an inherent risk of new pathogens being introduced, especially in large, populous cities [64,65]. This scenario was observed with the mosquito Cx .…”

Section: Discussionmentioning

confidence: 99%

Population Genetic Structure of Aedes fluviatilis (Diptera: Culicidae)

et al. 2016

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Although Aedes fluviatilis is an anthropophilic mosquito found abundantly in urban environments, its biology, epidemiological potential and genetic characteristics are poorly understood. Climate change and urbanization processes that result in environmental modifications benefit certain anthropophilic mosquito species such as Ae. fluviatilis, greatly increasing their abundance in urban areas. To gain a better understanding of whether urbanization processes modulate the genetic structure of this species in the city of São Paulo, we used eight microsatellite loci to genetically characterize Ae. fluviatilis populations collected in nine urban parks in the city of São Paulo. Our results show that there is high gene flow among the populations of this species, heterozygosity deficiency and low genetic structure and that the species may have undergone a recent population expansion. There are two main hypotheses to explain these findings: (i) Ae. fluviatilis populations have undergone a population expansion as a result of urbanization; and (ii) as urbanization of the city of São Paulo occurred recently and was quite intense, the structuring of these populations cannot be observed yet, apart from in the populations of Ibirapuera and Piqueri parks, where the first signs of structuring have appeared. We believe that the expansion found in Ae. fluviatilis populations is probably correlated with the unplanned urbanization of the city of São Paulo, which transformed green areas into urbanized areas, as well as the increasing population density in the city.

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Section: Discussionmentioning

confidence: 99%

Population Genetic Structure of Aedes fluviatilis (Diptera: Culicidae)

et al. 2016

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“…In Brazil, the first autochthonous case was described in 2014 in Amapá, a state in the North Region [8]. Since then, CHIKV has expanded its distribution in Brazil and 13,236 cases were confirmed in 2015, most of them occurring in states within the Northeast Region [9–11] . …”

Section: Introductionmentioning

confidence: 99%

First report of naturally infected Aedes aegypti with chikungunya virus genotype ECSA in the Americas

et al. 2017

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“…In Brazil, autochthonous cases were initially identified in 2014 in the municipality of Oiapoque, located in the northern region of Brazil (12) . In 2015, there were 23,431 probable cases of chikungunya fever in Brazil, which rose to 236,287 cases in 2016 (a 1,008.4% increase), only up to the month of September.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound of ankles in the diagnosis of complications of chikungunya fever

et al. 2017

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ObjectiveTo describe the main ultrasound findings of chikungunya fever in the ankle.Materials and MethodsThis was a cross-sectional observational study involving 52 patients referred to the Hospital Universitário Pedro Ernesto and presenting with clinical and biochemical evidence of chikungunya fever. The examinations were performed by a radiologist with more than 20 years of experience in ultrasound.ResultsThe predominant gender was female (in 88.5%), and the mean age was 58.4 years. The majority (61.5%) of the patients came from the northern part of the city of Rio de Janeiro, and 46.2% were using corticosteroids to treat inflammatory symptoms. The most common alterations observed by ultrasound were joint effusion (in 69.2%), tenosynovitis (in 59.6%), cellulitis (in 46.2%), Kager's fat pad thickening (in 29.9%), myositis (of the soleus or flexor hallucis longus muscle) (in 17.3%), retrocalcaneal bursitis (in 5.8%), tendon ruptures (in 3.8%), and increased vascular flow on power Doppler (in 3.8%).ConclusionSigns of synovitis and tenosynovitis were the main ultrasound findings in a predominantly female population with a mean age of 58.4 years. Further studies are needed in order to define the role of ultrasound in the follow-up of such patients.

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Chikungunya: uma arbovirose em estabelecimento e expansão no Brasil

Abstract: Chikungunya: uma arbovirose em estabelecimento e expansão no Brasil Chikungunya: una arbovirosis en establecimiento y desarrollo en Brasil

Cited by 95 publications

References 9 publications

Population Genetic Structure of Aedes fluviatilis (Diptera: Culicidae)

Population Genetic Structure of Aedes fluviatilis (Diptera: Culicidae)

First report of naturally infected Aedes aegypti with chikungunya virus genotype ECSA in the Americas

Ultrasound of ankles in the diagnosis of complications of chikungunya fever

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