Susceptibility of three laboratory strains of Aedes albopictus (Diptera: Culicidae) to Japanese encephalitis virus from Taiwan

Journal of Medical Entomology
M H WengC Chin

Abstract

The susceptibility of 3 laboratory strains of Aedes albopictus (Skuse) (Sanhsia [SH], Yungho [YH], Liyang [LY], and 1 strain of Culex tritaeniorhynchus Giles from northern and central Taiwan were compared for susceptibility to the MQ1-2 strain of Japanese encephalitis (JE) virus. The median infective dose (MID50) by intrathoracic inoculation was 0.23, 0.76, 1.60, and -0.03 log10 WMICLD50 (50% weanling mice intracranial lethal dose) with Ae. albopictus SH, YH, LY, and Cx. tritaeniorhynchus, respectively. After feeding on a sweetened blood-virus mixture, the oral MID50 was 2.03, 4.32, and 4.98 log10 WMICLD50 for SH, YH, and LY, respectively, and 1.02 log10 WMICLD50 for Cx. tritaeniorhynchus. The SH Ae. albopictus strain transmitted virus to normal mice after 14 d. with an average transmission rate of 45%. Based on these results, the SH strain was the most susceptible and important potential vector among 3 Ae. albopictus strains for the sympatric MQ1-2 strain of JE.

Citations

Jun 6, 2014·Journal of Medical Entomology·J NicholsonA F van den Hurk
Jan 14, 2017·PLoS Neglected Tropical Diseases·Mélissanne de WispelaereValérie Choumet
Apr 11, 2020·Pathogens·Taissa Pereira-Dos-SantosChristophe Paupy
Aug 15, 2018·Pathogens·Sang-Im Yun, Young-Min Lee
Nov 30, 2018·Emerging Microbes & Infections·Taissa Pereira Dos SantosChristophe Paupy
Jul 3, 2021·Viruses·Heidi AuerswaldSebastien Boyer

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