  We study the QCD equation of state, and fluctuations of baryon number and
strangeness using the hadron resonance gas model with repulsive mean field. We
find that including both the predicted but not observed resonances, a.k.a.
missing states, and the repulsive mean field into the resonance gas model leads
to better description of the lattice results. The repulsive mean field is
particularly important for the higher order baryon number fluctuations.
