What virus is responsible for causing chickenpox in children?

The virus responsible for causing chickenpox in children is the Varicella-zoster virus. This virus is part of the herpes virus family and is specifically known for causing the characteristic rash and symptoms associated with chickenpox. Infection with this virus typically occurs during childhood, resulting in a highly contagious condition.

Understanding the nature of this virus is essential, as it has a distinct transmission pattern and leads to lifelong immunity after infection, though it may reactivate later in life as shingles. Thus, while it is related to the herpesvirus family, the more precise identification of the causative agent as Varicella-zoster is crucial in accurately linking the disease to its specific viral etiology.