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Home > A-Z Vaccines > Varicella (Chickenpox)

Varicella (Chickenpox)

Your Complete Guide to the Varicella (Chickenpox) Vaccine: Benefits, Side Effects, and Key Information

What is the Varicella (Chickenpox) Vaccine?

Varicella, commonly known as chickenpox, is a highly contagious viral infection caused by the varicella-zoster virus. It results in an itchy rash with red spots and fluid-filled blisters, along with fever and fatigue. While chickenpox is generally mild in children, it can cause severe complications in adults and those with weakened immune systems. The varicella vaccine, which is highly effective in preventing the infection, is recommended for children and adults who have not had chickenpox, offering long-lasting protection and reducing the risk of severe disease.