  The production of strange and multi-strange hadrons in proton-proton (pp) and
lead-lead (Pb-Pb) collisions is studied with the ALICE experiment at the CERN
LHC. These particles are reconstructed via their weak decay topologies,
exploiting the tracking and particle identification capabilities of ALICE.
Measurements of central rapidity yields of $\Lambda$, $\Xi^{-}$ and
$\Omega^{-}$ baryons, their antiparticles and ${\mathrm K}^{0}_{S}$ mesons are
presented as a function of transverse momentum for Pb-Pb collisions at
$\sqrt{s_{NN}}=2.76$ TeV. They are compared to those observed in pp collisions
as well as to results from lower energy nucleus-nucleus measurements.
