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Dengue Introduction
The dengue viruses are parts of the genus Flavivirus in the family Flaviviridae . Onwards with the dengue virus, this genus also contains a number of other viruses transmitted by mosquitoes and ticks that are responsible for human diseases. Flavivirus includes the yellow fever, West Nile, Japanese encephalitis, and tick-borne encephalitis viruses. The dengue virus is a tiny structure that can only replicate inside a host organism. The four almost related dengue viruses — DEN-1, DEN-2, DEN-3, and DEN-4 — are found in the same regions of the world. The dengue virus is an approximately spherical structure composed of the viral genome and capsid proteins surrounded by an envelope and a shell of proteins. Subsequently infecting a host cell, the dengue virus hijacks the host cell's machinery to replicate the viral RNA genome and viral proteins. After maturing, the newly amalgamated dengue viruses are released and go on to infect other host cells. Dengue fe...
Introduction of Dengue and Chikungunia A
INTRODUCTION Dengue and chikungunya are both arboviral diseases caused by single-stranded RNA viruses ( DENV). They are both vigorous viruses spread by the Aedes mosquito. Both the diseases are occurs at temperature and ecoregions on spared all over the world. Dengue fever was first explained as “ Water intoxication” correlated with flying insects in a Chinese medical encyclopedia in 992 Since the Jin Dynasty (265-420 AD). The word “dengue” is derived from the Swahili phrase Ka-dinga pepo, meaning “cramp-like seizure”. The first clinically recognized dengue epidemics transpired practically in Asia, Dengue virus has 4 distinct serotypes (DEN-1, DEN-2, DEN-3, DEN-4). Infection with one serotype gives lifelong immunity against a particular serotype and less immunity against other serotypes. Flavivirus includes yellow fever, West Nile, Japanese encephalitis, and tick-borne encephalitis viruses. Dengue viruses belong to the genus Flavivirus in the family Flaviviridae....
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