Japanese B Encephalitis Vector

Jev is the main cause of viral encephalitis in many countries of asia with an estimated 68 000 clinical cases every year.

Japanese b encephalitis vector. Japanese encephalitis je is a viral disease predominantly located in south east asia and commonly associated with transmission between amplifying hosts such as pigs and the mosquito culex tritaeniorhynchus where human infection represents a dead end in the life cycle of the virus. Although symptomatic japanese encephalitis je is rare the case fatality rate among those with encephalitis can be as high as 30. Japanese encephalitis je is an infection of the brain caused by the japanese encephalitis virus jev. Most people infected with je do not have symptoms or have only mild symptoms.

Several mosquito species acting as vectors of japanese encephalitis virus jev dengue virus zika virus malaria parasites and other pathogens are primary mosquito species in shanghai china. The virus has been recovered from about 30 species of mosquitoes belonging to 5 genera namely culex anopheles aedes mansonia and armigeres. However few surveys of human pathogenic arboviruses in mosquitoes in shanghai have been reported in the last ten years. While most infections result in little or no symptoms occasional inflammation of the brain occurs.

Japanese encephalitis is a mosquito borne disease caused by the japanese encephalitis virus and spread primarily by the culex mosquito. Humans are considered accidental hosts of the virus that is the virus primarily infects animals namely pigs and water birds herons egrets. Japanese encaphalitis je is a zoonotic disease. Fortunately je is a vaccine preventable disease.

Japanese encephalitis je virus is the leading cause of vaccine preventable encephalitis in asia and the western pacific. This occurs about 5 to 15 days after infection. In these cases symptoms may include headache vomiting fever confusion and seizures. For most travelers to asia the risk for je is very low but varies based on destination length of travel season and activities.

It is caused by japanese encephalitis virus jev belonging to family flaviviridaeamongst the known etiological viral encephalitis agents it is one of the leading viral agents of acute encephalitis syndrome in many asian countries where it is identified to cause substantial morbidity and mortality as. Japanese encephalitis virus jev is a flavivirus related to dengue yellow fever and west nile viruses and is spread by mosquitoes. Centers for disease control and prevention national center for emerging and zoonotic infectious diseases ncezid division of vector borne diseases dvbd home japanese encephalitis home. Je is a vector borne disease that can be prevented by vaccine administration.