  We obtain an effective string theory of the Abrikosov-Nielsen-Olesen vortices
of the Abelian Higgs model. The theory has an anomaly free effective string
action which, when the extrinsic curvature is set equal to zero, yields the
Nambu-Goto action. This generalizes previous work in which a string
representation was obtained in the London limit, where the magnitude of the
Higgs field is fixed. Viewed as a model for long distance QCD, it provides a
concrete picture of the QCD string as a fluctuating Abrikosov-Nielsen-Olesen
vortex of a dual superconductor on the border between type I and type II.
