scholarly journals Unique Strain of Borrelia miyamotoi in Ixodes pacificus Ticks, California, USA

2016 ◽  
Vol 22 (12) ◽  
pp. 2205-2207 ◽  
Author(s):  
Vanessa J. Cook ◽  
Natalia Fedorova ◽  
Warren P. Macdonald ◽  
Robert S. Lane ◽  
Alan G. Barbour
Keyword(s):  
Borrelia Miyamotoi ◽  
Ixodes Pacificus ◽  
Unique Strain

scholarly journals Paired real-time PCR assays for detection of Borrelia miyamotoi in North American Ixodes scapularis and Ixodes pacificus (Acari: Ixodidae)

2016 ◽  
Vol 7 (6) ◽  
pp. 1230-1235 ◽  
Author(s):  
Christine B. Graham ◽  
Mark A. Pilgard ◽  
Sarah E. Maes ◽  
Andrias Hojgaard ◽  
Rebecca J. Eisen
Keyword(s):  
Real Time ◽  
North American ◽  
Real Time Pcr ◽  
Ixodes Scapularis ◽  
Borrelia Miyamotoi ◽  
Ixodes Pacificus ◽  
Pcr Assays

scholarly journals Large Scale Spatial Risk and Comparative Prevalence of Borrelia miyamotoi and Borrelia burgdorferi Sensu Lato in Ixodes pacificus

PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e110853 ◽  
Author(s):  
Kerry Padgett ◽  
Denise Bonilla ◽  
Anne Kjemtrup ◽  
Inger-Marie Vilcins ◽  
Melissa Hardstone Yoshimizu ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Large Scale ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Borrelia Miyamotoi ◽  
Ixodes Pacificus ◽  
Spatial Risk

scholarly journals Chromosome and Large Linear Plasmid Sequences of a Borrelia miyamotoi Strain Isolated from Ixodes pacificus Ticks from California

2017 ◽  
Vol 5 (37) ◽  
Author(s):  
Luke C. Kingry ◽  
Adam Replogle ◽  
Marc Dolan ◽  
Christopher Sexton ◽  
Kerry A. Padgett ◽  
...  
Keyword(s):  
United States ◽  
West Coast ◽  
The United States ◽  
Ixodid Ticks ◽  
Linear Plasmid ◽  
Borrelia Miyamotoi ◽  
Ixodes Pacificus ◽  
The West ◽  
Content Type ◽  
Plasmid Sequence

ABSTRACT Borrelia miyamotoi, a relapsing fever group spirochete, is an emerging tick-borne pathogen. It has been identified in ixodid ticks across the Northern Hemisphere, including the West Coast of the United States. We describe the chromosome and large linear plasmid sequence of a B. miyamotoi isolate cultured from a California field-collected Ixodes pacificus tick.

scholarly journals Examining prevalence and diversity of tick-borne pathogens in questing Ixodes pacificus ticks in California.

2021 ◽  
Author(s):  
Daniel J. Salkeld ◽  
Danielle M. Lagana ◽  
Julie Wachara ◽  
W. Tanner Porter ◽  
Nathan C. Nieto
Keyword(s):  
Lyme Disease ◽  
Reservoir Host ◽  
Infection Prevalence ◽  
Borrelia Miyamotoi ◽  
Ixodes Pacificus ◽  
Granulocytic Anaplasmosis ◽  
Pathogen Prevalence ◽  
Local Host ◽  
Host Ecology ◽  
Pathogen Occurrence

Tick-borne diseases in California include Lyme disease (caused by Borrelia burgdorferi), infections with Borrelia miyamotoi, and human granulocytic anaplasmosis (caused by Anaplasma phagocytophilum). We surveyed multiple sites and habitats (woodland, grassland, coastal chaparral) in California to describe spatial patterns of tick-borne pathogen prevalence in western black-legged ticks (Ixodes pacificus). We found that several species of Borrelia – B. burgdorferi, B. americana and B. bissettiae - were observed in habitats such as coastal chaparral that does not harbor obvious reservoir host candidates. Describing tick-borne pathogen prevalence is strongly influenced by the scale of surveillance: aggregating data from individual sites to match jurisdictional boundaries (e.g., county or state) can lower the reported infection prevalence. Considering multiple pathogen species in the same habitat allows a more cohesive interpretation of local pathogen occurrence. Importance Understanding the local host ecology and prevalence of zoonotic diseases is vital for public health. Using tick-borne diseases in California, we show that there is often a bias to our understanding and that studies tend to focus on particular habitats e.g., Lyme disease in oak woodlands. Other habitats may harbor a surprising diversity of tick-borne pathogens but have been neglected, e.g., coastal chaparral. Explaining pathogen prevalence requires descriptions of data at a local scale; otherwise, aggregating the data can misrepresent the local dynamics of tick-borne diseases.

scholarly journals Prevalence and Geographic Distribution of Borrelia miyamotoi in Host-Seeking Ixodes pacificus (Acari: Ixodidae) Nymphs in Mendocino County, California

2018 ◽  
Vol 55 (3) ◽  
pp. 711-716 ◽  
Author(s):  
Geoffrey E Lynn ◽  
Christine B Graham ◽  
Kalanthe Horiuchi ◽  
Lars Eisen ◽  
Tammi L Johnson ◽  
...  
Keyword(s):  
Geographic Distribution ◽  
Borrelia Miyamotoi ◽  
Ixodes Pacificus ◽  
Host Seeking ◽  
Mendocino County

Nomenclature Abstract for Borrelia miyamotoi Fukunaga et al. 1995.

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Nicole Danielle Osier ◽  
George M Garrity
Keyword(s):  
Borrelia Miyamotoi

scholarly journals Surveillance of Ticks and Tick-Borne Pathogens in Suburban Natural Habitats of Central Maryland

2021 ◽  
Author(s):  
Matthew T Milholland ◽  
Lars Eisen ◽  
Robyn M Nadolny ◽  
Andrias Hojgaard ◽  
Erika T Machtinger ◽  
...  
Keyword(s):  
Lyme Disease ◽  
Borrelia Burgdorferi ◽  
Spotted Fever ◽  
Babesia Microti ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Spotted Fever Group ◽  
Borrelia Miyamotoi ◽  
Natural Habitats ◽  
Questing Ticks ◽  
Tick Vectors

Abstract Lyme and other tick-borne diseases are increasing in the eastern United States and there is a lack of research on integrated strategies to control tick vectors. Here we present results of a study on tick-borne pathogens detected from tick vectors and rodent reservoirs from an ongoing 5-yr tick suppression study in the Lyme disease-endemic state of Maryland, where human-biting tick species, including Ixodes scapularis Say (Acari: Ixodidae) (the primary vector of Lyme disease spirochetes), are abundant. During the 2017 tick season, we collected 207 questing ticks and 602 ticks recovered from 327 mice (Peromyscus spp. (Rodentia: Cricetidae)), together with blood and ear tissue from the mice, at seven suburban parks in Howard County. Ticks were selectively tested for the presence of the causative agents of Lyme disease (Borrelia burgdorferi sensu lato [s.l.]), anaplasmosis (Anaplasma phagocytophilum), babesiosis (Babesia microti), ehrlichiosis (Ehrlichia ewingii, Ehrlichia chaffeensis, and ‘Panola Mountain’ Ehrlichia) and spotted fever group rickettsiosis (Rickettsia spp.). Peromyscus ear tissue and blood samples were tested for Bo. burgdorferi sensu stricto (s.s), A. phagocytophilum, Ba. microti, and Borrelia miyamotoi. We found 13.6% (15/110) of questing I. scapularis nymphs to be Bo. burgdorferi s.l. positive and 1.8% (2/110) were A. phagocytophilum positive among all sites. Borrelia burgdorferi s.s. was found in 71.1% (54/76) of I. scapularis nymphs removed from mice and 58.8% (194/330) of captured mice. Results from study on tick abundance and pathogen infection status in questing ticks, rodent reservoirs, and ticks feeding on Peromyscus spp. will aid efficacy evaluation of the integrated tick management measures being implemented.

scholarly journals Spatial and temporal patterns of the emerging tick-borne pathogen Borrelia miyamotoi in blacklegged ticks (Ixodes scapularis) in New York

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
F. Keesing ◽  
D. J. McHenry ◽  
M. H. Hersh ◽  
R. S. Ostfeld
Keyword(s):  
New York ◽  
Ixodes Scapularis ◽  
Quantitative Polymerase Chain Reaction ◽  
Human Infection ◽  
Ixodid Ticks ◽  
Transovarial Transmission ◽  
Infection Prevalence ◽  
Borrelia Miyamotoi ◽  
Spatial And Temporal Patterns ◽  
Reservoir Hosts

AbstractBorrelia miyamotoi, a bacterium that causes relapsing fever, is found in ixodid ticks throughout the northern hemisphere. The first cases of human infection with B. miyamotoi were identified in 2011. In the eastern USA, blacklegged ticks (Ixodes scapularis) become infected by feeding on an infected vertebrate host, or through transovarial transmission. We surveyed B. miyamotoi prevalence in ticks within forested habitats in Dutchess County, New York, and identified possible reservoir hosts. To assess spatial variation in infection, we collected questing nymphal ticks at > 150 sites. To assess temporal variation in infection, we collected questing nymphs for 8 years at a single study site. We collected questing larval ticks from nine plots to estimate the amount of transovarial transmission. To evaluate potential reservoir hosts, we captured 14 species of mammal and bird hosts naturally infested with larval blacklegged ticks and held these hosts in the laboratory until ticks fed to repletion and molted to nymphs. We determined infection for all ticks using quantitative polymerase chain reaction. The overall infection prevalence of questing nymphal ticks across all sites was ~ 1%, but prevalence at individual sites was as high as 9.1%. We detected no significant increase in infection through time. Only 0.4% of questing larval ticks were infected. Ticks having fed as larvae from short-tailed shrews, red squirrels, and opossums tended to have higher infection prevalence than did ticks having fed on other hosts. Further studies of the role of hosts in transmission are warranted. The locally high prevalence of B. miyamotoi in the New York/New England landscape suggests the importance of vigilance by health practitioners and the public.

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