Genetic shifts of Japanese encephalitis virus (JEV) in mosquitoes in the Republic of Korea, 2017-2022.

ABSTRACT:

Background

The Japanese encephalitis virus (JEV) is transmitted by mosquitoes and circulates in Asia, the western Pacific, and other parts of the world. It is classified into five genotypes (GI-GV) based on the nucleotide sequence of the envelope (E) gene. Despite extensive surveillance, shifts in genotype distribution and mosquito species remain underreported, particularly in the Republic of Korea.

Methodology/principal findings

We conducted a nationwide mosquito collection from 2017 to 2022, capturing 1,102,031 mosquitoes from 32 sites nationwide. The predominant species were Aedes vexans (34.2%), Culex pipiens (17.9%), Cx. tritaeniorhynchus (13.4%), Ae. albopictus (4.0%), and Cx. orientalis (0.6%). JEV was detected in 49 pools, with the majority from Cx. pipiens and Cx. t

SUBMITTER: Yun BR 

PROVIDER: S-EPMC12289085 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature