The invention provides a vaccine against respiratory syncytial virus (RSV), comprising a recombinant human adenovirus of serotype 26 that comprises nucleic acid encoding a RSV F protein or immunologicaily active part thereof.本發明提供一種抗呼吸道融合性病毒(RSV)疫苗,該疫苗包含血清型26重組人類腺病毒,該重組人類腺病毒包含編碼RSV F蛋白質或其免疫活性部分之核酸。