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Journal of Clinical Microbiology, 06 1995, 1473-1478, Vol 33, No. 6
J Bunikis, B Olsen, G Westman and S Bergstroom
Borrelia burgdorferi sensu lato species display considerable antigenic
polymorphism. In order to evaluate the importance of this antigenic
heterogeneity in the serodiagnosis of Lyme disease, the serum
immunoglobulin G response in 148 healthy individuals from an area in
northern Sweden where Lyme disease is endemic and in 40 American patients
with Lyme disease was assessed. In a seroprevalence study, the control
group included 173 individuals from a region of northern Sweden where Lyme
disease is not endemic. The two enzyme immunoassays used were based on
outer membrane-associated proteins of either B. burgdorferi sensu stricto
or Borrelia garinii. The Swedish populations were also screened for
antiflagellum seroreactivity. The individuals from the area of endemicity
were significantly more seropositive for the subcellular protein fraction
of the local B. garinii isolate NBS16 than the control group (11.5 versus
2.9%; P = 0.005) but were not significantly more positive for the other
antigens used. In contrast, American patients with Lyme disease were
significantly more reactive against the North American B. burgdorferi sensu
stricto strain B31 than against B. garinii NBS16 (57.5 versus 15.0%; P =
0.0001). Immunoblot analysis suggests that the borrelial outer surface
protein C is involved in triggering the production of species-specific
antibody during localized Lyme disease. We conclude that a species-specific
immune response develops during infection with Lyme disease Borrelia spp.
Thus, the reliability of a serological investigation of Lyme disease
increases when one measures antibody titers against the outer membrane
proteins of Lyme disease Borrelia spp. occurring in a particular geographic
region.
Copyright © 1995 by the American Society for Microbiology. All rights reserved.
Variable serum immunoglobulin responses against different Borrelia burgdorferi sensu lato species in a population at risk for and patients with Lyme disease
Department of Microbiology, Umea University, Sweden.
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