  In light of the latest IceCube data, we discuss the implications of the
cosmic ray energy input from hypernovae and supernovae into the Universe, and
their propagation in the hosting galaxy and galaxy clusters or groups. The
magnetic confinement in these environments may lead to efficient $pp$
collisions, resulting in a diffuse neutrino spectrum extending from PeV down to
10 TeV energies, with a spectrum and flux level compatible with that recently
reported by IceCube. If the diffuse 10 TeV neutrino background largely comes
from such the CR reservoirs, the corresponding diffuse gamma-ray background
should be compatible with the recent \textit{Fermi} data. In this scenario, the
CR energy input from hypernovae should be dominant over that of supernovae,
implying that the starburst scenario does not work if the supernova energy
budget is a factor of two larger than the hypernova energy budget. Thus, this
strong case scenario can be supported or ruled out in near future.
