Positive and negative selected sites for RSV-A and RSV-B strains identified in this study.

FEL: fixed-effects likelihood; FUBAR: fast unconstrained Bayesian approximation; IFEL: random effects likelihood; MEME: mixed effects model of evolution; REL: internal branch fixed-effects likelihood; SLAC: single-likelihood ancestor. Positive and negative selected sites for RSV-A and RSV-B strains identified in this study.