Japanese Encephalitis Virus Genotype Replacement, Taiwan, 2009–2010

Abstract

Genotype I of Japanese encephalitis virus first appeared in Taiwan in 2008. Phylogenetic analysis of 37 viruses from pig farms in 2009–2010 classified these viruses into 2 unique subclusters of genotype I viruses and suggested multiple introductions and swift replacement of genotype III by genotype I virus in Taiwan.

Keywords

• Japanese encephalitis
• genotype
• pig farm
• viruses
• vector-borne infections
• Taiwan