Virus del dengue pdf 2017

Nevertheless, scientists understanding of dengue virus may be simplistic, as rather than. Each denv has four or more genetic groups or genotypes. Four distinct serotypes of the dengue virus dengue1, dengue2, dengue3, and dengue4 exist, with numerous virus strains found worldwide. Dengue is common in more than 100 countries around the world. Dengue is a viral infection caused by four types of viruses denv1, denv2, denv3, denv4 belonging to the flaviviridae family.

If you are infected with the same dengue virus serotype you become immune to future infections. First detection of dengue and chikungunya viruses in natural. Analysis of the spatial and temporal distribution of the. The disease is caused by four serologically and genetically distinct viruses termed dengue virus denv 1, 2, 3 and 4. Local transmission of dengue fever in france and spain. Dengue virus is transmitted by female mosquitoes mainly of the species. Dengue is related to zika virus, yellow fever, west nile virus, and japanese encephalitis. Dengue and severe dengue world health organization. Dengue viruses are spread to people through the bite of an infected aedes species ae. It is a mosquitoborne, single positivestranded rna virus of the family flaviviridae. You can be infected by at least two if not all four types at different times during your lifetime, but only once by the same type. It is a mosquito borne, single positivestranded rna virus of the family flaviviridae. Forty percent of the worlds population, about 3 billion people, live in areas with a risk of dengue. Nevertheless, scientists understanding of dengue virus may be simplistic, as rather than distinct antigenic groups, a continuum appears to exist.

The viruses are transmitted through the bite of infected aedes aegypti and aedes albopictus female mosquitoes that feed both indoors and outdoors during the. Santiago ga, vergne e, quiles y, cosme j, vazquez j, medina jf, medina f, colon c, margolis h, munozjordan. Dengue fever can be caused by any one of four types of dengue virus. Uncertainty remains regarding the effect on the outcome of sequential infections of different dengue virus denv types and zika virus zikv. Five serotypes of the virus have been found, all of which can cause the full spectrum of disease.

Humanitarian situation reports, response plans, news, analyses, evaluations, assessments, maps, infographics and more on peru. Por lo tanto, una persona puede tener hasta cuatro enfermedades por dengue durante su vida. Molecular cloning methods have led to a greater understanding of the structure of the rna genome and definition of virus specific structural and nonstructural proteins. In the last 50 years, dengue incidence has increased 30fold, worldwide. May 23, 2016 humanitarian situation reports, response plans, news, analyses, evaluations, assessments, maps, infographics and more on peru. Existen cuatro tipos del virus del dengue den1, den2, den3 y den4. Performance of dengue diagnostic tests in a singlespecimen diagnostic algorithm. Mota6, jarbas s rorizfilho2,7 resumo a dengue e uma arbovirose transmitida principalmente pela picada do mosquito aedes. Transmission dengue virus can be transmitted from the bite of an infected aedes mosquito. Flaviviruses dengue, yellow fever, japanese encephalitis, west nile encephalitis, st. Four distinct serotypes of the dengue virus dengue 1, dengue 2, dengue 3, and dengue 4 exist, with numerous virus strains found worldwide. Nesse primeiro sobre a dengue, vamos conhecer o quadro clinico da doenca.