  In order to be traversable, the static Lorentzian wormhole must be made out
of some exotic matter that violates the weak energy condition. The quantized
fields are the natural candidates as their stress-energy tensor, in many cases,
possesses desired properties. In this paper we construct and examine the
stress-energy tensor of the quantized massive scalar, spinor and vector fields
in six static wormhole spacetimes. We find that in all considered cases the
quantum fields violate the Morris-Thorne conditions and do not have the form
necessary to support the wormhole throat. This is in concord with the previous
results and indicates that the massive quantum fields make the wormholes less
operable.
