Anti-RSV immunogens and methods of immunization

A respiratory syncytial virus vaccine comprising an isolated immunogen that protects from an aberrant or enhanced response to an RSV vaccine in a human subject, said immunogen consisting of an amino acid sequence consisting of the amino acids of:

• (i) amino acid position 163 to amino acid position 190 of SEQ ID NO:
• 8, amino acid position 163 to amino acid position 190 of SEQ ID NO. 7, or amino acid position 163 to amino acid position 190 of SEQ ID NO. 1;
• (ii) amino acid position 155 to amino acid position 206 of SEQ ID NO:
• 7, amino acid position 155 to amino acid position 206 of SEQ ID NO:
• 1, or amino acid position 155 to amino acid position 206 of SEQ ID NO:
• 8;
• or
• a combination thereof;
• and
• an immunogenic carrier that promotes the immunogenicity of said immunogen, said immunogenic carrier coupled to said immunogen.