Metagenomic Nanopore Sequencing of Tickborne Pathogens, Mongolia.,Emerging Infectious Diseases

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Metagenomic Nanopore Sequencing of Tickborne Pathogens, Mongolia.
Emerging Infectious Diseases ( IF 7.2 ) Pub Date : 2024-11-01 , DOI: 10.3201/eid3014.240128
Koray Ergunay,Bazartseren Boldbaatar,Brian P Bourke,Laura Caicedo-Quiroga,Cynthia L Tucker,Andrew G Letizia,Nora G Cleary,Abigail G Lilak,Guugandaa Nyamdavaa,Sharav Tumenjargal,Michael E von Fricken,Yvonne-Marie Linton

We performed nanopore-based metagenomic screening on 885 ticks collected from 6 locations in Mongolia and divided the results into 68 samples: 23 individual samples and 45 pools of 2-12 tick samples each. We detected bacterial and parasitic pathogens Anaplasma ovis, Babesia microti, Coxiella burnetii, Borrelia miyamotoi, Francisella tularensis subsp. holarctica and novicida, Spiroplasma ixodetis, Theileria equi, and Rickettsia spp., including R. raoultii, R. slovaca, and R. canadensis. We identified the viral pathogens Crimean-Congo hemorrhagic fever virus (2.9%), recently described Alongshan virus (ALSV) (2.9%), and Beiji nairovirus (5.8%). We assembled ALSV genomes, and maximum-likelihood analyses revealed clustering with viruses reported in humans and ticks from China. For ALSV, we identified surface glycoprotein markers associated with isolates from Asia viruses hosted by Ixodes persulcatus ticks. We also detected 20 virus species of unknown public health impact, including a near-complete Yanggou tick virus genome. Our findings demonstrate that nanopore sequencing can aid in detecting endemic and emerging tickborne pathogens.

更新日期：2024-11-01

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