  The treatment of nuclear effects in neutrino-nucleus interactions is one of
the main sources of systematic uncertainty for the analysis and interpretation
of data of neutrino oscillation experiments. Neutrinos interact with nuclei via
charged or neutral currents and both cases must be studied to obtain a complete
information. We give an overview of the theoretical work that has been done to
describe nuclear effects in neutral-current neutrin onucleus scattering in the
kinematic region ranging between beam energies of a few hundreds MeV to a few
GeV, which is typical of most ongoing and future accelerator-based neutrino
experiments, and where quasielastic scattering is the main interaction
mechanism. We review the current status and challenges of the theoretical
models, the role and relevance of the contributions of different nuclear
effects, and the present status of the comparison between the numerical
predictions of the models as well as the available experimental data. We
discuss also the sensitivity to the strange form factors of the nucleon and the
methods and observables that can allow one to obtain evidence for a possible
strange quark contribution from measurements of neutrino and
antineutrino-nucleus scattering.

High Energy Physics - Phenomenology;Nuclear Experiment;Nuclear Theory