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Vector competence of Amblyomma americanum (Acari: Ixodidae) for Rickettsia rickettsii.
Levin ML, Zemtsova GE, Killmaster LF, Snellgrove A, Schumacher LBM. Levin ML, et al. Ticks Tick Borne Dis. 2017 Jun;8(4):615-622. doi: 10.1016/j.ttbdis.2017.04.006. Epub 2017 Apr 12. Ticks Tick Borne Dis. 2017. PMID: 28433728 Free PMC article.
Rickettsia rickettsii - the etiologic agent of Rocky Mountain spotted fever (RMSF) - is widely spread across the Americas. ...
Rickettsia rickettsii - the etiologic agent of Rocky Mountain spotted fever (RMSF) - is widely spread across the Americas. ...
Effects of Rickettsia amblyommatis Infection on the Vector Competence of Amblyomma americanum Ticks for Rickettsia rickettsii.
Levin ML, Schumacher LBM, Snellgrove A. Levin ML, et al. Vector Borne Zoonotic Dis. 2018 Nov;18(11):579-587. doi: 10.1089/vbz.2018.2284. Epub 2018 Aug 10. Vector Borne Zoonotic Dis. 2018. PMID: 30096017 Free PMC article.
Although Dermacentor spp. ticks are considered the primary vectors of Rickettsia rickettsii in the United States, other North American tick species are also capable of transmitting the agent, including the lone star tick-Amblyomma americanum. ...
Although Dermacentor spp. ticks are considered the primary vectors of Rickettsia rickettsii in the United States, other North …
Rickettsia rickettsii (Rickettsiales: Rickettsiaceae) in Amblyomma americanum (Acari: Ixodidae) from Kansas.
Berrada ZL, Goethert HK, Cunningham J, Telford SR 3rd. Berrada ZL, et al. J Med Entomol. 2011 Mar;48(2):461-7. doi: 10.1603/me10130. J Med Entomol. 2011. PMID: 21485390
Of 870 adult and nymphal lone star ticks, Amblyomma americanum (L.), 0.46% contained DNA of Rickettsia rickettsii. Interestingly, two of these positive ticks were concurrently infected by R. amblyommii. ...
Of 870 adult and nymphal lone star ticks, Amblyomma americanum (L.), 0.46% contained DNA of Rickettsia rickettsii …
Expanding Range of Amblyomma americanum and Simultaneous Changes in the Epidemiology of Spotted Fever Group Rickettsiosis in the United States.
Dahlgren FS, Paddock CD, Springer YP, Eisen RJ, Behravesh CB. Dahlgren FS, et al. Am J Trop Med Hyg. 2016 Jan;94(1):35-42. doi: 10.4269/ajtmh.15-0580. Epub 2015 Oct 26. Am J Trop Med Hyg. 2016. PMID: 26503270 Free PMC article.
The reasons for this are not well understood; however, we hypothesize that less pathogenic rickettsiae are causing more human infections, while the incidence of disease caused by more pathogenic rickettsiae, particularly Rickettsia rickettsii, is relatively stable. …
The reasons for this are not well understood; however, we hypothesize that less pathogenic rickettsiae are causing more human infections, wh …
Rickettsia spp. Infecting Lone Star Ticks (Amblyomma americanum) (Acari: Ixodidae) in Monmouth County, New Jersey.
Egizi A, Gable S, Jordan RA. Egizi A, et al. J Med Entomol. 2020 May 4;57(3):974-978. doi: 10.1093/jme/tjz251. J Med Entomol. 2020. PMID: 31912880
Tick-borne rickettsiae are undergoing epidemiological changes in the eastern United States while human encounters with lone star ticks (Amblyomma americanum L.) have increased substantially. We used real-time polymerase chain reaction assays to test for three specie …
Tick-borne rickettsiae are undergoing epidemiological changes in the eastern United States while human encounters with lone star ticks (A …
Antibody Titers Reactive With Rickettsia rickettsii in Blood Donors and Implications for Surveillance of Spotted Fever Rickettsiosis in the United States.
Straily A, Stuck S, Singleton J, Brennan S, Marcum S, Condit M, Lee C, Kato C, Tonnetti L, Stramer SL, Paddock CD. Straily A, et al. J Infect Dis. 2020 Mar 28;221(8):1371-1378. doi: 10.1093/infdis/jiz316. J Infect Dis. 2020. PMID: 31267128
METHODS: Donor serum samples were evaluated by indirect immunofluorescence antibody assay to identify immunoglobulin G (IgG) antibodies reactive with Rickettsia rickettsii. The Georgia Department of Public Health (GDPH) analyzed characteristics of cases from 2016 su …
METHODS: Donor serum samples were evaluated by indirect immunofluorescence antibody assay to identify immunoglobulin G (IgG) antibodies reac …
Absence of Rickettsia rickettsii and occurrence of other spotted fever group rickettsiae in ticks from Tennessee.
Moncayo AC, Cohen SB, Fritzen CM, Huang E, Yabsley MJ, Freye JD, Dunlap BG, Huang J, Mead DG, Jones TF, Dunn JR. Moncayo AC, et al. Am J Trop Med Hyg. 2010 Sep;83(3):653-7. doi: 10.4269/ajtmh.2010.09-0197. Am J Trop Med Hyg. 2010. PMID: 20810834 Free PMC article.
To better understand the prevalence and distribution of rickettsial agents in ticks, we tested 1,265 Amblyomma, Dermacentor, and Ixodes adult and nymphal ticks. Additionally, we tested 231 Amblyomma americanum larvae. Ticks were collected from 49 counties from human …
To better understand the prevalence and distribution of rickettsial agents in ticks, we tested 1,265 Amblyomma, Dermacentor, and Ixodes adul …
New Jersey-Wide Survey of Spotted Fever Group Rickettsia (Proteobacteria: Rickettsiaceae) in Dermacentor variabilis and Amblyomma americanum (Acari: Ixodida: Ixodidae).
Occi J, Egizi AM, Goncalves A, Fonseca DM. Occi J, et al. Am J Trop Med Hyg. 2020 Sep;103(3):1009-1016. doi: 10.4269/ajtmh.20-0145. Am J Trop Med Hyg. 2020. PMID: 32588804 Free PMC article.
To identify the Rickettsia circulating in NJ ticks, we used a combination of conventional and real time PCR approaches to screen 560 Dermacentor variabilis Say and 245 Amblyomma americanum L. obtained from a 1-day state-wide surveillance in May 2018 and an additiona …
To identify the Rickettsia circulating in NJ ticks, we used a combination of conventional and real time PCR approaches to screen 560 Dermace …
The prevalence of rickettsial and ehrlichial organisms in Amblyomma americanum ticks collected from Ohio and surrounding areas between 2000 and 2010.
Fitak RR, Kelly DJ, Daniels MK, Jiang J, Richards AL, Fuerst PA. Fitak RR, et al. Ticks Tick Borne Dis. 2014 Oct;5(6):797-800. doi: 10.1016/j.ttbdis.2014.06.005. Epub 2014 Jul 22. Ticks Tick Borne Dis. 2014. PMID: 25108789
The lone star tick, Amblyomma americanum, feeds upon a variety of hosts and is a known vector of several human pathogens. ...We did not detect the presence of known pathogens Rickettsia rickettsii or Ehrlichia chaffeensis, but we did identify the prese …
The lone star tick, Amblyomma americanum, feeds upon a variety of hosts and is a known vector of several human pathogens. ...W …
Phylogenetic placement of rickettsiae from the ticks Amblyomma americanum and Ixodes scapularis.
Weller SJ, Baldridge GD, Munderloh UG, Noda H, Simser J, Kurtti TJ. Weller SJ, et al. J Clin Microbiol. 1998 May;36(5):1305-17. doi: 10.1128/JCM.36.5.1305-1317.1998. J Clin Microbiol. 1998. PMID: 9574696 Free PMC article.
A rickettsial isolate (isolate MOAa) belonging to the spotted fever group (SFG) was obtained from the lone star tick Amblyomma americanum. We used PCR to characterize the genes for the rickettsial outer membrane proteins rOmpA and rOmpB. ...To place MOAa and WB-8-2 …
A rickettsial isolate (isolate MOAa) belonging to the spotted fever group (SFG) was obtained from the lone star tick Amblyomma ame …
27 results