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Varicella infection, also known as chickenpox, is a highly contagious viral infection caused by the varicella-zoster virus. It is primarily a childhood disease but can occur in adults who have not been previously infected or vaccinated.
The symptoms of varicella infection include:
The rash typically starts as small, red bumps that quickly become fluid-filled blisters that eventually scab over and heal. Varicella infection is usually mild and resolves on its own within 7-10 days. However, it can sometimes cause complications, especially in people with weakened immune systems, including pneumonia, bacterial skin infections, and encephalitis.
Varicella infection can be prevented with vaccination, and vaccination is recommended for all children and adults who have not had chickenpox or been vaccinated. Treatment for varicella infection typically involves managing symptoms, such as taking acetaminophen for fever, and avoiding scratching the rash to prevent bacterial skin infections. Antiviral medications may be prescribed for people at higher risk of complications, such as adults and people with weakened immune systems.