Varicella-zoster virus lifelong immunity symptoms

The varicella-zoster virus, which causes both chickenpox and shingles, does not confer lifelong immunity after infection. This virus often enters the body during childhood through infection of the upper respiratory tract and remains latent within the dorsal root ganglia of the spinal nerves. When the body's immunity is weakened—such as during prolonged illness, fatigue, or emotional stress—the dormant virus can reactivate, travel along nerve fibers to the skin, and cause an outbreak of shingles. Although patients may acquire temporary immune protection after recovery from shingles, this immunity is not long-lasting. Therefore, shingles can recur, particularly when the body's resistance declines again. The varicella-zoster virus does not lead to lifelong immunity. Patients should continue to maintain healthy lifestyle habits and adequate immune function after recovery to prevent disease recurrence. If symptoms related to shingles appear, prompt medical attention and appropriate treatment are necessary.