Laboratory of Virology, National Institute for Infectious Diseases 'Lazzaro Spallanzani' IRCCS, Rome, Italy.
Molecular Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Euro Surveill. 2019 Jan;24(3). doi: 10.2807/1560-7917.ES.2019.24.3.1800649.
Blood donation screening for West Nile virus (WNV) was mandatory in the Lazio region in 2017 and 2018 (June-November) according to the national surveillance plan. In these years, all five donations reactive in WNV nucleic acid amplification tests harboured instead Usutu virus (USUV). Clade 'Europe 2' was identified in four blood donations and a 2018 mosquito pool. The cocirculation of WNV and USUV in Lazio warrants increased laboratory support and awareness of possible virus misidentification.
2017 年和 2018 年（6 月至 11 月），根据国家监测计划，拉齐奥地区强制性对献血进行西尼罗河病毒（WNV）筛查。在这两年中，所有五份在 WNV 核酸扩增试验中呈反应性的血液样本均携带乌苏图病毒（USUV）。在 2018 年的 4 份献血样本和 1 个蚊子池中鉴定出了“欧洲 2 型”分支。WNV 和 USUV 在拉齐奥地区的共同传播需要增加实验室支持，并提高对可能的病毒误识别的认识。
