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present and future arboviral threats.arthropod-borne viruses (arboviruses) are important causes of human disease nearly worldwide. all arboviruses circulate among wild animals, and many cause disease after spillover transmission to humans and agriculturally important domestic animals that are incidental or dead-end hosts. viruses such as dengue (denv) and chikungunya (chikv) that have lost the requirement for enzootic amplification now produce extensive epidemics in tropical urban centers. many arboviruses recently have increased i ...201019857523
experimental transmission of mayaro virus by aedes aegypti.outbreaks of mayaro fever have been associated with a sylvatic cycle of mayaro virus (mayv) transmission in south america. to evaluate the potential for a common urban mosquito to transmit mayv, laboratory vector competence studies were performed with aedes aegypti from iquitos, peru. oral infection in ae. aegypti ranged from 0% (0/31) to 84% (31/37), with blood meal virus titers between 3.4 log(10) and 7.3 log(10) plaque-forming units (pfu)/ml. transmission of mayv by 70% (21/30) of infected mo ...201121976583
mayaro virus and dengue virus 1 and 4 natural infection in culicids from cuiabá, state of mato grosso, brazil.this study aimed to verify the diversity of culicidae species and their frequency of infection with flaviviruses and alphaviruses in cuiabá, state of mato grosso, brazil. mosquitoes were captured with nasci aspirators and hand net in 200 census tracts, identified alive at species level and pooled in one-20 (11,090 mosquitoes, 14 species). female pools (n = 610) were subjected to multiplex seminested-reverse transcription-polymerase chain reaction (rt-pcr) for 11 flavivirus and five alphavirus. p ...026784852
clinical and virological descriptive study in the 2011 outbreak of dengue in the amazonas, brazil.dengue is a vector-borne disease in the tropical and subtropical region of the world and is transmitted by the mosquito aedes aegypti. in the state of amazonas, brazil during the 2011 outbreak of dengue all the four dengue virus (denv) serotypes circulating simultaneously were observed. the aim of the study was to describe the clinical epidemiology of dengue in manaus, the capital city of the state of the amazonas, where all the four denv serotypes were co-circulating simultaneously.201424978469
anti-mayaro virus activity of cassia australis extracts (fabaceae, leguminosae).the arthropod-borne mayaro virus (mayv) causes 'mayaro fever', a disease of medical significance, primarily affecting individuals in permanent contact with forested areas in tropical south america. studies showed that the virus could also be transmitted by the mosquito aedes aegypti. recently, mayv has attracted attention due to its likely urbanization. to date, there are no drugs that can treat this illness.201425428163
[mayaro: a re-emerging arbovirus in venezuela and latin america].mayaro virus produces nonspecific, sublethal disease symptoms, often confused with dengue, but with symptoms of arthalgias that can cause incapacitating disability. outbreaks have been localized and sporadic in the pan-amazonia forest since its first isolation in 1954 (trinidad and tobago). the literature available is scarce, diverse and dispersed. mayaro virus is an alphavirus, phylogenetically related to the semliki forest antigenic complex. una and mayaro viruses are the only viruses of this ...201223242303
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