| CPC A61K 39/155 (2013.01) [A61K 39/295 (2013.01); A61P 37/04 (2018.01); A61K 2039/53 (2013.01); A61K 2039/70 (2013.01); C12N 2760/18322 (2013.01); C12N 2760/18334 (2013.01); C12N 2760/18522 (2013.01); C12N 2760/18534 (2013.01)] | 27 Claims |

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1. A respiratory syncytial virus (RSV) vaccine composition comprising
a messenger ribonucleic acid (mRNA) comprising an open reading frame (ORF) encoding RSV mutant F B strain protein having an amino acid sequence of SEQ ID NO: 1.
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