Bill contracts a viral disease that destroys cells in the posterior gray horns in his spinal cord. As a result

Answer:Bill will loose sensation in his Torso.

Explanation:

The spinal cord serve as a route in which signals are been transfer or passed between the brain and the periphery.

Each segment of the spinal cord is associated with a pair of ganglia called dorsal root ganglia, found outside the spinal cord. These ganglia contain cell bodies of sensory neurons.

Axons of these sensory neurons travel into the spinal cord via the dorsal roots.

The viral disease that destroys cells in the posterior gray horns in his spinal cord causes loss in sensation in Torso.