{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T23:29:55Z","timestamp":1790724595883,"version":"4.1.0"},"reference-count":139,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,10,23]],"date-time":"2020-10-23T00:00:00Z","timestamp":1603411200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100015691","name":"Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases","doi-asserted-by":"publisher","award":["R01 AI093351"],"award-info":[{"award-number":["R01 AI093351"]}],"id":[{"id":"10.13039\/100015691","id-type":"DOI","asserted-by":"publisher"}]},{"name":"University of Toledo College of Medicine and Life Sciences","award":["Bridge Funding"],"award-info":[{"award-number":["Bridge Funding"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Microorganisms"],"abstract":"<jats:p>Over 600,000 vector-borne disease cases were reported in the United States (U.S.) in the past 13 years, of which more than three-quarters were tick-borne diseases. Although Lyme disease accounts for the majority of tick-borne disease cases in the U.S., tularemia cases have been increasing over the past decade, with &gt;220 cases reported yearly. However, when comparing Borrelia burgdorferi (causative agent of Lyme disease) and Francisella tularensis (causative agent of tularemia), the low infectious dose (&lt;10 bacteria), high morbidity and mortality rates, and potential transmission of tularemia by multiple tick vectors have raised national concerns about future tularemia outbreaks. Despite these concerns, little is known about how F. tularensis is acquired by, persists in, or is transmitted by ticks. Moreover, the role of one or more tick vectors in transmitting F. tularensis to humans remains a major question. Finally, virtually no studies have examined how F. tularensis adapts to life in the tick (vs. the mammalian host), how tick endosymbionts affect F. tularensis infections, or whether other factors (e.g., tick immunity) impact the ability of F. tularensis to infect ticks. This review will assess our current understanding of each of these issues and will offer a framework for future studies, which could help us better understand tularemia and other tick-borne diseases.<\/jats:p>","DOI":"10.3390\/microorganisms8111639","type":"journal-article","created":{"date-parts":[[2020,10,23]],"date-time":"2020-10-23T08:59:28Z","timestamp":1603443568000},"page":"1639","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Mechanisms Affecting the Acquisition, Persistence and Transmission of Francisella tularensis in Ticks"],"prefix":"10.3390","volume":"8","author":[{"given":"Brenden G.","family":"Tully","sequence":"first","affiliation":[{"name":"Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0501-6103","authenticated-orcid":false,"given":"Jason F.","family":"Huntley","sequence":"additional","affiliation":[{"name":"Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,10,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"496","DOI":"10.15585\/mmwr.mm6717e1","article-title":"Vital Signs: Trends in Reported Vectorborne Disease Cases United States and Territories, 2004\u20132016","volume":"67","author":"Rosenberg","year":"2018","journal-title":"Mmwr Morb. 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