NOVELTY - A wind turbine blade (10) comprises blade shell body made of composite material consisting of reinforcement fibers of a 1st fiber type embedded in a matrix material of a 1st matrix type, tip end, root end, leading edge (18), trailing edge (20), and erosion shield (70) extending along exterior surface of blade shell body. Erosion shield has greater than or equal to 1 inner layer of aramid reinforcement fibers embedded in matrix material of a 2nd matrix type and greater than or equal to 1 outer layer made of UV-resistant coating layer.    USE - A wind turbine blade.    ADVANTAGE - The wind turbine blade has an erosion shield with increased operational lifetime because the erosion shield is reinforced with aramid fibers, which has higher impact strength than glass fibers and carbon fibers, prolonging the lifetime of the wind turbine blade or at least prolong the periods between services or repairs of the blade. The erosion shield is protected with a UV-resistant coating layer which ensures that the strength of the aramid fibers is maintained under operation, and which may further extend the periods between services or repairs of the blade. The erosion shield may be provided as a relative thin layer on the exterior surface of the blade and along only a limited erosion critical part of the blade, minimizing the additional cost of utilizing aramid fibers. Polyurethane is relatively cheap and provides good adhesion to surface of composite material of blade shell body. The inner layer has increased flexibility with a corresponding increase in the ability to absorb impact shock waves due to its amorphous rubber-like state for at least a section of the wind turbine blade operational range as a result of the polyurethane material having a glass transition temperature below a portion of the specified operational temperature range of the wind turbine blade.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for retrofitting an erosion shield to a surface of a wind turbine blade which involves applying erosion shield extending along an exterior surface of at least a portion of the blade shell body, applying greater than or equal to 1 inner layer of aramid reinforcement fibers embedded in a matrix material of a 2nd matrix type, and applying greater than or equal to 1 outer layer made of UV-resistant coating layer.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a wind turbine blade.    Wind turbine blade (10)    Leading edge (18)    Trailing edge (20)    Root region (30)    Erosion shield (70)