What virus causes chickenpox?

The Varicella-zoster virus is the causative agent of chickenpox, a highly contagious disease characterized by an itchy rash, fever, and a general feeling of being unwell. This virus belongs to the herpesvirus family and is known for its ability to establish latency in the body after the initial infection, often reactivating later in life to cause shingles, or herpes zoster.

The other viruses listed do not cause chickenpox: The Rubeola virus is responsible for measles, the Rubella virus causes German measles, and Human papillomavirus is linked to various conditions, including warts and certain types of cancer, but is not associated with chickenpox. Understanding the specific characteristics and health implications of the Varicella-zoster virus highlights its significance in infectious disease practice and public health.