cambridge books ventures 2 library monkey

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In South America, YFV is maintained in enzootic cycles involving monkeys and forest-canopy mosquitoes of the genera Haemagogus and Sabethes (6,7). During 2000, YFV occurred near Brasilia, the capital city (4) in 2001, YFV spread to new areas of Minas Gerais outside the currently recognized enzootic zone (5). A recent upsurge in YFV activity in Brazil and the reinfestation of urban areas with the vector mosquito Aedes aegypti have stretched disease surveillance and control resources to their limits. Despite a safe and effective vaccine (17D), YFV continues to be a public health problem in tropical areas of Africa and South America (1-3).

Yellow fever virus (YFV) is transmitted by the bite of infected mosquitoes and produces a severe hemorrhagic fever in humans. Isolation of vaccine virus from a patient with a fatal case suggests that vaccine-related illness may have been misdiagnosed in the past. Phylogenetic analysis indicated traffic of virus variants through large geographic areas and suggested that migration of infected people may be an important mechanism of virus dispersal. Pairwise nucleotide diversity between strains ranged from 0% to 7.4%, while amino acid divergence ranged from 0% to 4.6%. Brazilian YFV strains have diverged into two clades an older clade appears to have become extinct and another has become the dominant lineage in recent years. Retrieved from Īn analysis of 79 yellow fever virus (YFV) isolates collected from 1935 to 2001 in Brazil showed a single genotype (South America I) circulating in the country, with the exception of a single strain from Rondonia, which represented South America genotype II.

APA style: Genetic divergence and dispersal of yellow fever virus, Brazil.Genetic divergence and dispersal of yellow fever virus, Brazil.' Retrieved from National Center for Infectious Diseases 25 Jun.

CAMBRIDGE BOOKS VENTURES 2 LIBRARY MONKEY FREE

MLA style: 'Genetic divergence and dispersal of yellow fever virus, Brazil.' The Free Library.

Cambridge books ventures 2 library monkey