Unbiased long read metagenomic screening reveals diverse jingmen tick virus genomes across continents

Jingmen tick virus (JMTV) is an emerging tick-associated virus related to flaviviruses. Substantial information gaps remain on the epidemiology and public health impact of JMTV, despite evidence for symptomatic human infections, detection in potential zoonotic reservoirs and widespread global circulation. Using an unbiased metagenomics approach based on long read sequencing, we screened field-collected ticks (n = 3232) of various life stages from locations of spillover risk across continents, from Eastern Africa (Kenya), Central America (Belize), and North America (Arkansas, United States). Signals of virus detection were observed in 32.9% of the pooled samples comprising adult, nymph and larvae stages. JMTV genome segments were assembled in 16.7% of the pools with initial virus detection. Adult ticks comprising Amblyomma gemma, Hyalomma rufipes, Rhipicephalus. evertsi and Rhipicephalus pulchellus from Kenya yielded complete JMTV genome assemblies. Evidence for tick-associated arbo-jingmenviruses was described for the first time in Belize, identified as complete genome segments encoding for non-structural virus proteins in pooled larvae. Analysis of globally distributed complete JMTV genomes revealed a considerable geographic partitioning of diversity and two significantly supported virus clades and genomic underrepresentation in many regions with documented virus activity. Further investigations and expanded screening are needed to elucidate JMTV and arbo-jingmenvirus global epidemiology.