Paskey Adrian C, Ng Justin H J, Rice Gregory K, Chia Wan Ni, Philipson Casandra W, Foo Randy J H, Cer Regina Z, Long Kyle A, Lueder Matthew R, Frey Kenneth G, Hamilton Theron, Mendenhall Ian H, Smith Gavin J, Wang Lin-Fa, Bishop-Lilly Kimberly A
Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814, USA.
Genomics and Bioinformatics Department, Biological Defense Research Directorate, Naval Medical Research Center - Frederick, 8400 Research Plaza, Fort Detrick, MD 21702, USA.
Virus Evol. 2020 Mar 18;6(1):veaa017. doi: 10.1093/ve/veaa017. eCollection 2020 Jan.
The virosphere is largely unexplored and the majority of viruses are yet to be represented in public sequence databases. Bats are rich reservoirs of viruses, including several zoonoses. In this study, high throughput sequencing (HTS) of viral RNA extracted from swabs of four body sites per bat per timepoint is used to characterize the virome through a longitudinal study of a captive colony of fruit nectar bats, species in Singapore. Through unbiased shotgun and target enrichment sequencing, we identify both known and previously unknown viruses of zoonotic relevance and define the population persistence and temporal patterns of viruses from families that have the capacity to jump the species barrier. To our knowledge, this is the first study that combines probe-based viral enrichment with HTS to create a viral profile from multiple swab sites on individual bats and their cohort. This work demonstrates temporal patterns of the lesser dawn bat virome, including several novel viruses. Given the known risk for bat-human zoonoses, a more complete understanding of the viral dynamics in South-eastern Asian bats has significant implications for disease prevention and control. The findings of this study will be of interest to U.S. Department of Defense personnel stationed in the Asia-Pacific region and regional public health laboratories engaged in emerging infectious disease surveillance efforts.
病毒圈在很大程度上尚未被探索,并且大多数病毒尚未在公共序列数据库中得到体现。蝙蝠是丰富的病毒宿主,包括几种人畜共患病原体。在本研究中,通过对新加坡的圈养果蝠群体进行纵向研究,利用从每个蝙蝠每个时间点的四个身体部位拭子中提取的病毒RNA进行高通量测序(HTS)来表征病毒组。通过无偏差鸟枪法和靶向富集测序,我们鉴定出了具有人畜共患病相关性的已知和先前未知的病毒,并确定了有能力跨越物种屏障的病毒家族的群体持续性和时间模式。据我们所知,这是第一项将基于探针的病毒富集与HTS相结合,以从个体蝙蝠及其群体的多个拭子部位创建病毒图谱的研究。这项工作展示了小黄蝠病毒组的时间模式,包括几种新型病毒。鉴于蝙蝠 - 人类人畜共患病的已知风险,更全面地了解东南亚蝙蝠中的病毒动态对疾病预防和控制具有重要意义。本研究的结果将引起驻扎在亚太地区的美国国防部人员以及参与新发传染病监测工作的区域公共卫生实验室的兴趣。