| Autor: |
Faizah AN; 1Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Japan.; 2Laboratory of Veterinary Public Health, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Japan., Kobayashi D; 1Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Japan., Maekawa Y; 1Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Japan., Amoa-Bosompem M; 3Department of Sanitary Entomology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan., Fauziyah S; 4Faculty of Medicine, Airlangga University, Surabaya, Indonesia., Mulyatno KC; 5Institute of Tropical Diseases, Airlangga University, Surabaya, Indonesia., Subekti S; 5Institute of Tropical Diseases, Airlangga University, Surabaya, Indonesia., Rohmah EA; 5Institute of Tropical Diseases, Airlangga University, Surabaya, Indonesia., Lusida MI; 5Institute of Tropical Diseases, Airlangga University, Surabaya, Indonesia., Mori Y; 6Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan., Miura K; 2Laboratory of Veterinary Public Health, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Japan., Hirayama K; 2Laboratory of Veterinary Public Health, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Japan., Isawa H; 1Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Japan., Sawabe K; 1Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Japan. |
| Abstrakt: |
Japanese encephalitis virus (JEV) is transmitted between swine, migratory birds, and Culex mosquitoes, and has circulated indigenously in Asia for almost a century. Despite being the country with the highest JEV diversity, surveillance targeting of Indonesia's vectors is scarce. This study collected mosquitoes from several locations in Tabanan Regency, Bali Island, Indonesia. We captured and classified 3,032 adult Culex mosquitoes into seven species, with Culex vishnui subgroup mosquitoes making up approximately 90% of the total. Japanese encephalitis virus was identified by next-generation sequencing (NGS) analysis of a Cx. vishnui mosquito pool. Genetic and phylogenetic analysis revealed the JEV as genotype (G) IV. The nucleotide identity was 99% with other JEV GIV isolates obtained from swine sera in 2017 on Bali Island and from a human patient in Australia with a travel history to Bali in 2019. This finding indicated that JEV GIV persists in restricted areas and is circulating between swine-mosquito vectors. |
