Japanese encephalitis

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Japanese encephalitis
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i) agent: Japanese encephalitis virus( RNA virus).
ii) transmission: the bite of an infected mosquito, primarily Culex species. 

mosquito; carrier of Japanese encephalitis virus(Culex tritaeniorhynchus)
---------- Department of Medical Entomology, NIID, Japan

iii) Disease: a few than 1% of human develop the encephalitis. Most peoples

------ are symptom-free.  Case–fatality ratio is around 20%–30%. 

------ Among survivors, 30%–50% may have significant neurological sequelae.

iv) Incidence of Japanese encephalitis:

----- In Japan, fewer than 10 patients/ year.

----- This virus is the most common cause of encephalitis in Asia, 

----- occurring throughout most of Asia and parts of the western Pacific. 

----- The virus has not been locally transmitted in Africa, Europe, or USA.

------ Centers for Disease Control and Prevention -------

v) prevention:  If you work or travel rural area during summer or rainy seasons,
----------- where mosquito bites are there ,
-----------Japanese encephalitis vaccine( 3 times; 0, 1~4 weeks, 1 year) should
----------- be administered.

Inactivated Vero Cell Culture-Derived JE Vaccine

Any questions;  
       Keiji Hagiwara, MD   keijihagiwara@gmail.com