title: An OspA antigen-capture enzyme-linked immunosorbent assay for detecting North American isolates of Borrelia burgdorferi in larval and nymphal Ixodes dammini.
abstract: An antigen-capture enzyme-linked immunosorbent assay (ELISA) was developed for detecting North American isolates of Borrelia burgdorferi in larval, nymphal, and adult ticks. The assay uses an anti-OspA monoclonal antibody (H5332) for antigen capture and biotin-labelled polyclonal sera with streptavidinhorseradish peroxidase for signal generation. The assay recognized 15 of 15 North American B. burgdorferi isolates and did not cross-react with spirochete antigens of Borrelia hermsii, Borrelia turicatae, Borrelia coriaceae, or Borrelia parkeri, or with tick antigens of Ixodes dammini, Ixodes scapularis, Ixodes pacificus, Ixodes cookei, Ixodes angustus, or Ambylomma americanum. The assay, with a sensitivity of less than 150 spirochetes, can detect infections in larval, nymphal, and adult ticks. In addition to fresh ticks, B. burgdorferi infections in ticks stored frozen, dried, or in 70% ethanol can be determined with the assay.
authors.affiliation: Division of Vector-Borne Infectious Diseases, Centers for Disease Control, Fort Collins, Colorado 80522.
authors.forename: T R
authors.initials: TR
authors.lastname: Burkot
authors.forename: R A
authors.initials: RA
authors.lastname: Wirtz
authors.forename: B
authors.initials: B
authors.lastname: Luft
authors.forename: J
authors.initials: J
authors.lastname: Piesman
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000032:analysis; D000954:Antigens, Surface / Q000032:analysis / Q000276:immunology; D001425:Bacterial Outer Membrane Proteins / Q000032:analysis / Q000276:immunology; D015373:Bacterial Typing Techniques; D001428:Bacterial Vaccines; D001898:Borrelia / Q000276:immunology / Q000302:isolation & purification; D015748:Borrelia burgdorferi Group / Q000235:genetics / Q000276:immunology / Q000302:isolation & purification*; D004269:DNA, Bacterial / Q000235:genetics; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods* / Q000706:statistics & numerical data; D005069:Evaluation Studies as Topic; D007814:Larva / Q000382:microbiology; D008074:Lipoproteins; D009656:North America; D012680:Sensitivity and Specificity; D013045:Species Specificity; D013987:Ticks / Q000382:microbiology*
chemical_list: D000942:Antigens, Bacterial; D000954:Antigens, Surface; D001425:Bacterial Outer Membrane Proteins; D001428:Bacterial Vaccines; D004269:DNA, Bacterial; D008074:Lipoproteins; C072045:OspA protein