Role of vector in transmission of viral hemorrhagic fever

Abstract

Viral hemorrhagic fever is considered from zoonotic diseases which infect both human and animal, it is transmitted via vector (mosquito, tick) according to type of viral hemorrhagic fever, such as dengue fever and yellow fever are transmitted by bite of mosquito, but CCHF is transmitted by bite of tick, the viruses belong to four families include Arenaviridae, Bunyaviridae, Flaviviridae, and Filoviridae, can also be transmitted from human to human by direct contact with blood and body fluids. In severe cases of disease may be lead to threatening human life due to malfunction in immune system and failure in kidney and other organs. While in animal that cause in economic losses. To reduce severity of disease by control of vector and should be use vaccine to prevent disease.