Details:

Alternative Title:
Emerg Infect Dis
Personal Author:
Schwan, Tom G. ; Raffel, Sandra J. ; Schrumpf, Merry E. ; Porcella, Stephen F.
Schwan, Tom G. ; Raffel, Sandra J. ; Schrumpf, Merry E. ; Porcella, Stephen F. Less -
Description:
Borrelia hermsii is the most common cause of tickborne relapsing fever in North America. DNA sequences of the 16S-23S rDNA noncoding intergenic spacer (IGS) region were determined for 37 isolates of this spirochete. These sequences distinguished the 2 genomic groups of B. hermsii identified previously with other loci. Multiple IGS genotypes were identified among isolates from an island, which suggested that birds might play a role in dispersing these spirochetes in nature. In support of this theory, all stages of the tick vector Ornithodoros hermsi fed successfully on birds in the laboratory and advanced in their life cycle. B. hermsii produced a detectable spirochetemia in 1 chicken inoculated subcutaneously. Additional work is warranted to explore the role of birds as enzootic hosts for this relapsing fever spirochete.
Subject:
[+]
Animals
Arachnid Vectors
Bacteremia
Borrelia
Chickens
Disease Reservoirs
DNA, Intergenic
Ecosystem
Humans
Life Cycle Stages
Ornithodoros
Phylogeny
Polymorphism, Genetic
Poultry Diseases
Relapsing Fever
Research
RNA, Bacterial
RNA, Ribosomal, 16S
RNA, Ribosomal, 23S
Sciuridae
Species Specificity
Ticks

Source:
Emerg Infect Dis. 13(3):436-442.
Document Type:
Journal Article
Place as Subject:
Northwestern United States
Collection(s):
Emerging Infectious Diseases
Main Document Checksum:
[+]
urn:sha256:2ff849decf23ee4062c686229daf5f585acb75c89c3a528e91167527e79d4430
File Type:

Supporting Files

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  	06-0958.nxml	txt
  	license.txt	txt

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