Most people who have had chickenpox or have gotten the vaccine are immune to chickenpox . If you've been vaccinated and still get chickenpox , symptoms are often milder. You may have fewer blisters and mild or no fever. A few people can get chickenpox more than once, but this is rare. Identify common symptoms, causes and spread, treatment, and risks of chickenpox (varicella). Chickenpox , also known as varicella, is a highly contagious infection caused by the varicella zoster virus (VZV). It causes an itchy, blister-like rash. Most people recover within 1 to 2 weeks,... Chickenpox , also called varicella, is a highly contagious disease caused by the varicella-zoster virus (VZV). This virus is a member of the herpesvirus family, and humans are the only known natural hosts for it. VZV is found worldwide. The initial infection with VZV results in chickenpox .
