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Emerg Infect Dis. 2009 Jan;15(1):1-7. doi: 10.3201/eid1501.080311.

Past, present, and future of Japanese encephalitis.

Author information

1
Department of Public Health and Epidemiology, Swiss Tropical Institute, Basel, Switzerland. tobias@erlanger.ch

Abstract

Japanese encephalitis (JE), a vector-borne viral disease, is endemic to large parts of Asia and the Pacific. An estimated 3 billion people are at risk, and JE has recently spread to new territories. Vaccination programs, increased living standards, and mechanization of agriculture are key factors in the decline in the incidence of this disease in Japan and South Korea. However, transmission of JE is likely to increase in Bangladesh, Cambodia, Indonesia, Laos, Myanmar, North Korea, and Pakistan because of population growth, intensified rice farming, pig rearing, and the lack of vaccination programs and surveillance. On a global scale, however, the incidence of JE may decline as a result of large-scale vaccination programs implemented in China and India.

Comment in

PMID:
19116041
PMCID:
PMC2660690
DOI:
10.3201/eid1501.080311
[Indexed for MEDLINE]
Free PMC Article

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