Antigenic Multimeric Respiratory Syncytial Virus Polypeptides

An antigenic RSV G polypeptide comprising more than two RSV G central conserved region (Gcc) monomers and a multimerization domain, wherein the polypeptide does not comprise ferritin and/or the polypeptide is a single chain polypeptide,

• wherein the more than two RSV Gcc monomers comprise RSV Gcc monomers of strain A or strain B,
• wherein the RSV Gcc of strain A comprises:
• a) the same sequence of amino acids as amino acids 2-42 of SEO ID NO:
• 4, or
• b) the same sequence of amino acids as amino acids 151-193 of SEO ID NO:
• 1;
• wherein the RSV Gcc of strain B comprises the same sequence of amino acids as amino acids 10-51 of SEO ID NO:
• 8;
• and
• wherein the multimerization domain comprises the sequence of SEO ID NOs:
• 9, 11, or 13.