South Texas has experienced local transmission of Zika virus and of other mosquito-borne viruses such as chikungunya virus and dengue virus in the last decades. Using a mosquito surveillance program in the Lower Rio Grande Valley (LRGV) and San Antonio, TX, from 2016 to 2018, we detected the presence of an insect-specific virus, cell fusing agent virus (CFAV), in the Aedes aegypti mosquito population. We tested 6,326 females and 1,249 males from the LRGV and 659 females from San Antonio for CFAV by RT-PCR using specific primers. Infection rates varied from 0 to 261 per 1,000 mosquitoes in the LRGV and 115 to 208 per 1,000 in San Antonio depending on the month of collection. Infection rates per 1,000 individuals appeared higher in females collected from BG Sentinel 2 traps compared to Autocidal Gravid Ovitraps, but the ratio of the percentage of infected pools did not differ by trap type. The natural viral load in individual males ranged from 1.25 x 10² to 5.50 x 10⁶ RNA copies and in unfed females from 5.42 x 10³ to 8.70 x 10⁶ RNA copies. Gravid females were found to harbor fewer viral particles than males and unfed females.

在过去的几十年中，德克萨斯州南部经历了寨卡病毒和其他蚊媒病毒如基孔肯雅病毒和登革热病毒的本地传播。使用 2016 年至 2018 年在下里奥格兰德河谷 (LRGV) 和德克萨斯州圣安东尼奥市的蚊子监测计划，我们在埃及伊蚊中检测到了一种昆虫特异性病毒细胞融合剂病毒 (CFAV)蚊子种群。我们使用特定引物通过 RT-PCR 测试了来自 LRGV 的 6,326 名女性和 1,249 名男性以及来自圣安东尼奥的 659 名女性的 CFAV。根据收集月份的不同，LRGV 的感染率从每 1,000 只蚊子 0 到 261 只不等，而在圣安东尼奥的每 1,000 只蚊子的感染率从 115 到 208 只不等。与 Autocidal Gravid Ovitraps 相比，从 BG Sentinel 2 诱捕器收集的女性每 1,000 人的感染率似乎更高，但感染池的百分比并未因诱捕器类型而异。雄性个体的自然病毒载量范围为 1.25 x 10 ²至 5.50 x 10 ⁶ RNA 拷贝，未进食雌性的自然病毒载量范围为 5.42 x 10 ³至 8.70 x 10 ⁶RNA 拷贝。发现怀孕的女性比男性和未喂食的女性携带更少的病毒颗粒。