Stage specific diagnostic antigens, assay and vaccine for lyme disease
Stage-specific Borrelia antigens for diagnosing, treating and/or preventing Lyme disease are provided. The antigens include chimeric Borrelia antigen constructs and mutant recombinant proteins comprising OspC and OspE epitopes, respectively. The antigens are used in multiprotein assays that differentiate early, middle and late stage infection, and/or in vaccine preparations.
1. A recombinant polypeptide comprising SEQ ID NO: 2 (RM9A61) or a variant thereof having at least 90% amino acid sequence identity or similarity to SEQ ID NO: 2; or SEQ ID NO: 4 (EurAs9v2) or a variant thereof having at least 90% amino acid sequence identity or similarity to SEQ ID NO: 4.
2. A reconstitutable powder comprising a recombinant polypeptide of claim 1 .
3. A composition comprising a recombinant polypeptide of claim 1 , and a liquid vehicle.
4. A vaccine or immunogenic composition comprising one or more antigenic recombinant polypeptides selected from the group consisting of: SEQ ID NO: 2 (RM9A61) or a variant thereof having at least 90% amino acid sequence identity or similarity to SEQ ID NO: 2; and SEQ ID NO: 4 (EurAs9v2) or a variant thereof having at least 90% amino acid sequence identity or similarity to SEQ ID NO: 4; and a physiologically compatible carrier.
5. The vaccine or immunogenic composition of claim 4 comprising SEQ ID NO: 2 (RM9A61) or a variant thereof having at least 95% amino acid sequence identity or similarity to SEQ ID NO: 2; SEQ ID NO: 4 (EurAs9v2) or a variant thereof having at least 95% amino acid sequence identity or similarity to SEQ ID NO: 4; and a physiologically compatible carrier.
6. The recombinant polypeptide of claim 1 , wherein the variant of SEQ ID NO: 4 (EurAs9v2) has at least 95% amino acid sequence identity or similarity to SEQ ID NO: 4.