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Isolation and characteristics of Borrelia burgdorferi from Ixodes persulcatus.

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Abstract

We reported the detailed characteristics of
Lyme disease spirochetes (Borrelia burgdorferi), strain H7, isolated from Ixodes persulcatus in Heilongjiang. Cells of strain H7 were 9.8–26.5 microns long and 0.13–0.35 microns wide. There were 1–11 waves with a wavelength of 1.2–3.0 microns and an amplitude of 0.59–1.13 microns. Direction of spires was left. Seven flagella were inserted subterminally at each end of the cell and ends were pointed. 31 degrees C was the optimum cultural temperature in vitro. The major constitutional and antigenic proteins were 21k, 32k and 34k proteins. H7 could react on the patient sera of Xinjiang and Heilongjiang with IFA and western blot. These findings demonstrated that strain H7 belonged to species Borrelia burgdorferi, but was a new "subtype" which differed from the strains isolated from other areas and vectors.

Wei Sheng Wu Xue Bao. 1991 Apr;31(2):151-5. English Abstract

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