| Autor: |
Fraenkel, Carl-Johan, Garpmo, Ulf, Berglund, Johan |
| Zdroj: |
Journal of Clinical Microbiology; September 2002, Vol. 40 Issue: 9 p3308-3312, 5p |
| Abstrakt: |
ABSTRACTA total of 301 adult questing Ixodes ricinusticks were collected at 15 different locations along the south and east coasts of Sweden to determine the Borreliagenospecies diversity. Thirty-two ticks (11%) were found to be positive by nested PCR with Borrelia burgdorferisensu lato-specific primers. Species determination was based on partial sequencing of the 16S rRNA gene and the flagellin gene. Five different Borreliaspecies were found. The nucleotide sequence of the BorreliaDNA found in two ticks differed extensively from the nucleotide sequences of the BorreliaDNA found in the other ticks, and analysis revealed that they were closely related to the relapsing fever borrelia species Borrelia miyamotoi. This is the first report of a B. miyamotoi-like borrelia in I. ricinusand in Europe. Moreover, the BorreliaDNA of two ticks (6%) clustered within the B. valaisianacomplex. B. valaisianahas not previously been reported in Sweden. B. afzeliiDNA was found in 14 ticks (44%), and B. gariniiDNA was found in 10 ticks (31%). B. burgdorferisensu stricto DNA was found in four ticks (13%). We conclude that all of the known human-pathogenic species (B. garinii, B. afzelii, and B. burgdorferisensu stricto) and B. valaisianafound elsewhere in Europe are also present in the Swedish host-seeking tick population and that a B. miyamotoi-like Borreliaspecies seems to be present in I. ricinusticks in Europe. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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