Japanese Encephalitis Virus Genotype Replacement, Taiwan, 2009–2010

摘要

Genotype I of Japanese encephalitis virus fi rst appeared in Taiwan in 2008. Phylogenetic analysis of 37 viruses from pig farms in 2009–2010 classifi ed 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