The present invention relates to an mRNA sequence, comprising a coding region, encoding at least one antigenic peptide or protein derived from the glycoprotein (GP) and/or the matrix protein 40 (VP40) and/or the nucleoprotein (NP) of a virus of the genus Ebolavirus or Marburgvirus or a fragment, variant or derivative thereof. Additionally, the present invention relates to a composition comprising a plurality of mRNA sequences comprising a coding region, encoding at least one antigenic peptide or protein derived from the glycoprotein (GP) and/or the matrix protein 40 (VP40) and/or the nucleoprotein (NP) of a virus of the genus Ebolavirus or Marburgvirus or a fragment, variant or derivative thereof. Furthermore it also discloses the use of the mRNA sequence or the composition comprising a plurality of mRNA sequences for the preparation of a pharmaceutical composition, especially a vaccine, e.g. for use in the prophylaxis or treatment of Ebolavirus or Marburgvirus infections. The present invention further describes a method of treatment or prophylaxis of Ebolavirus or Marburgvirus infections using the mRNA sequence.
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