Uchida Leo, Shibuya Miki, Morales-Vargas Ronald Enrique, Hagiwara Katsuro, Muramatsu Yasukazu
School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok 10400, Thailand.
Pathogens. 2021 Jul 24;10(8):938. doi: 10.3390/pathogens10080938.
The Zika virus (ZIKV) is a rapidly expanding mosquito-borne virus that causes febrile illness in humans. and are the primary ZIKV vectors; however, the potential vector competence of other mosquitoes distributed in northern Japan (Palearctic ecozone) are not yet known. In this study, the susceptibility to Zika virus infection of three mosquitoes distributed in the main city of the northern Japan and their capacities as vectors for ZIKV were evaluated. Field-collected mosquitoes were fed ad libitum an infectious blood meal containing the ZIKV PRVABC59. The Zika virus was detected in the abdomen of and at 2-10 days post infection (PI), and from the thorax and head of at 10 days PI, resulting in 17.6% and 5.9% infection rates, respectively. The Zika virus was not detected from at any time. Some northern Japanese could be suspected as vectors of ZIKV but the risk may be low when compared with major ZIKV vectors.
寨卡病毒（ZIKV）是一种迅速传播的蚊媒病毒，可导致人类发热性疾病。埃及伊蚊和白纹伊蚊是寨卡病毒的主要传播媒介；然而，分布在日本北部（古北区生态区）的其他蚊子作为潜在传播媒介的能力尚不清楚。在本研究中，评估了分布在日本北部主要城市的三种蚊子对寨卡病毒感染的易感性及其作为寨卡病毒传播媒介的能力。对野外采集的蚊子随意喂食含有寨卡病毒PRVABC59的感染性血餐。在感染后2 - 10天，在埃及伊蚊和白纹伊蚊的腹部检测到寨卡病毒，在感染后10天在致倦库蚊的胸部和头部检测到寨卡病毒，感染率分别为17.6%和5.9%。在任何时候都未从致倦库蚊中检测到寨卡病毒。日本北部的一些蚊子可能被怀疑是寨卡病毒的传播媒介，但与主要的寨卡病毒传播媒介相比，风险可能较低。
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