Arboviruses
Mostrando 25-36 de 119 artigos, teses e dissertações.
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25. Imported case of Dengue virus 3 genotype I in Rio de Janeiro state, Brazil
The dengue virus (DENV), of the genus Flavivirus (Flaviviridae), has four antigenically distinct serotypes, of which DENV-3 is classified into five genotypes. Here, we describe the detection of DENV-3 genotype I in sera of a Brazilian patient travelling from Singapore to Rio de Janeiro, Brazil, by using multiplex real-time RT-PCR, DNA sequencing of the whole
Mem. Inst. Oswaldo Cruz. Publicado em: 25/06/2018
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26. Report of East-Central South African Chikungunya virus genotype during the 2016 outbreak in the Alagoas State, Brazil
ABSTRACT Chikungunya virus (CHIKV) causes a self-limiting disease characterized by the onset of fever, skin rash and persistent arthralgia. In the last decade, it has emerged as a serious public health problem causing several outbreaks around the world. Here, we report the CHIKV genotype characterization during the 2016 CHIKV outbreak in Alagoas State, Brazi
Rev. Inst. Med. trop. S. Paulo. Publicado em: 23/04/2018
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27. Zika detection: comparison of methodologies
ABSTRACT Many countries in the Americas have detected local transmission of multiple arboviruses that cause febrile illnesses. Therefore, laboratory testing has become an important tool for confirming the etiology of these diseases. The present study aimed to compare the sensitivity and specificity of three different Zika virus detection assays. One hundred
Braz. J. Microbiol.. Publicado em: 2018-03
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28. Effects of temephos resistance on life history traits of Aedes albopictus (Skuse) (Diptera: Culicidae), a vector of arboviruses
Abstract The effects of temephos resistance on the fitness cost of the wild populations of Aedes albopictus was evaluated. The larvae of two wild populations were exposed to the diagnostic dose of 0.02 mg and 0.012 mg/L. The larvae which survived after the 24 h exposure to diagnostic dose were considered as resistant and F1 generations were chosen for the co
Rev. Bras. entomol.. Publicado em: 2017-12
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29. Clinical and serological tests for arboviruses in free-living domestic pigeons (Columba livia)
BACKGROUND In this study, we evaluated the role of free-living domestic pigeons (Columba livia) as a reservoir of arboviruses in the city of Belém, state of Pará, Brazil. We investigated the presence of antibodies against the most prevalent arboviruses. OBJECTIVES This study was aimed at evaluating some clinical and physical parameters of domestic pige
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-08
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30. Chikungunya virus: clinical aspects and treatment - A Review
Chikungunya is a severe and debilitating disease. Currently, Brazil is experiencing an epidemic caused by three arboviruses, which has changed the way health professionals have diagnosed and treated infected patients. The difficulty of diagnosis and the lack of a protocol for patient treatment, which fits Brazilian health system models, have made it difficul
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-08
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31. Surveillance of deaths caused by arboviruses in Brazil: from dengue to chikungunya
Did death occur DUE TO dengue, or in a patient WITH dengue virus infection? It seems a matter of semantics, but in fact, it underscores how challenging it is to distinguish whether the disease contributed to death, or was itself the underlying cause of death. Can a death be attributed to chikungunya virus, when some deaths occur after the acute phase? Did th
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-08
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32. Multiplexed reverse transcription real-time polymerase chain reaction for simultaneous detection of Mayaro, Oropouche, and Oropouche-like viruses
ABSTRACT We describe a sensitive method for simultaneous detection of Oropouche and Oropouche-like viruses carrying the Oropouche S segment, as well as the Mayaro virus, using a multiplexed one-step reverse transcription real-time polymerase chain reaction (RT-qPCR). A chimeric plasmid containing both Mayaro and Oropouche targets was designed and evaluated f
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-07
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33. Spatial distribution of Culicidae (Diptera) larvae, and its implications for Public Health, in five areas of the Atlantic Forest biome, State of São Paulo, Brazil
ABSTRACT In view of the adaptive ability of mosquitoes and their role in the transport of infective agents, entomological surveys undertaken in transitional environments are very important for the determination of the risk they represent for Public Health. Among the principal vectors of the infectious agents involved in the occurrence of important arboviruse
Rev. Bras. entomol.. Publicado em: 2017-04
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34. Molecular and clinical epidemiological surveillance of dengue virus in Paraíba, Northeast Brazil
ABSTRACT INTRODUCTION: Despite being the most prevalent arboviral disease worldwide, dengue has been neglected lately. However, recent epidemics of arboviruses such as Zika and chikungunya in locations throughout the world have alerted health authorities to these diseases. This study evaluated the incidence pattern of dengue, its clinical characteristics, a
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-02
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35. Mosquito-transmitted viruses - the great Brazilian challenge
ABSTRACT Arboviruses pose a serious threat to public health worldwide, overloading the healthcare system and causing economic losses. These viruses form a very diverse group, and in Brazil, arboviruses belonging to the families Flaviviridae and Togaviridae are predominant. Unfortunately, the number of arboviruses increases in proportion with factors such as
Braz. J. Microbiol.. Publicado em: 2016-12
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36. How are so many foreign arboviruses introduced in Brazil?
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-12