Shingles is a viral infection caused by the reactivation of the varicella-zoster virus, which also causes chickenpox. It is characterized by a painful rash and can lead to complications, especially in older adults or those with weakened immune systems.
varicella zoster virus
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The **varicella zoster virus** is a highly contagious herpesvirus responsible for two distinct diseases: chickenpox (varicella) during primary infection and shingles (herpes zoster) upon reactivation later in life. This virus spreads primarily through respiratory droplets and direct contact with skin lesions. It remains dormant in nerve cells and can reactivate years after the initial infection, leading to painful rashes and potential complications. Understanding the varicella zoster virus is essential for prevention, timely diagnosis, and effective management of its associated conditions.