Question

in the condition ____, a virus infects posterior root ganglia, causing a painful rash along that nerves dermatome. shingles neuronal damage hodgkins disease chickenpox myasthenia gravis

Explanation:

Shingles is caused by the re - activation of the varicella - zoster virus (the same virus that causes chickenpox). It infects the posterior root ganglia (a cluster of nerve cell bodies). The virus travels along the sensory nerves to the skin, resulting in a painful rash in the dermatome (an area of skin supplied by a single spinal nerve) corresponding to the infected nerve.
Neuronal damage is a general term and not a specific condition with this exact viral - ganglia - rash mechanism. Hodgkin's disease is a type of cancer related to lymphocytes. Chickenpox is the initial infection with the varicella - zoster virus, not the re - activation (shingles). Myasthenia gravis is an autoimmune disorder affecting the neuromuscular junction, not related to this viral - ganglia - rash pattern.

Answer:

shingles