Change in Japanese Encephalitis Virus Distribution in Thailand
Author Information
Author(s): Nitatpattana Narong, Dubot-Pérès Audrey, Gouilh Meriadeg Ar, Souris Marc, Barbazan Philippe, Yoksan Sutee, de Lamballerie Xavier, Gonzalez Jean-Paul
Primary Institution: Mahidol University, Bangkok, Thailand
Hypothesis
What are the changes in Japanese encephalitis virus genotypes in Thailand?
Conclusion
The study found a shift in the Japanese encephalitis virus genotype from GIII to GI in Thailand over the past decades.
Supporting Evidence
- Twelve JEV strains were isolated, indicating a shift in genotype.
- Genotype I strains were found to cluster phylogenetically but not geographically.
- Immunization programs have reduced the incidence of Japanese encephalitis in Thailand.
Takeaway
Scientists studied pigs and mosquitoes in Thailand to see how the Japanese encephalitis virus changed over time, and they found that a new type of the virus is now more common.
Methodology
The study involved a 3-year survey of JEV incidence in 7 provinces, collecting samples from pigs and mosquitoes.
Limitations
The study may not account for all environmental factors affecting virus transmission.
Participant Demographics
The study focused on pigs and mosquitoes in various provinces of Thailand.
Digital Object Identifier (DOI)
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