Varicella-Zoster virus
Causes of chickenpox. Chickenpox is caused by the varicella-zoster virus. You catch it by coming into contact with someone who is infected. Chickenpox is a very contagious infection. Around 90% of people who have not previously had chickenpox will become infected when they come into contact with the virus.  Chickenpox (varicella) is a contagious illness that causes an itchy rash and red spots or blisters (pox) all over the body. Chickenpox can cause problems for pregnant women, newborns, teens and adults, and people who have immune system problems that make it hard for the body to fight infection. Chickenpox is caused by the varicella-zoster virus. It can spread easily. You can get it from an infected person who sneezes, coughs, or shares food or drinks. You can also get it if you touch the fluid from a chickenpox blister. Chickenpox is caused by the varicella-zoster virus, a member of the herpes virus family. The same virus also causes herpes zoster, or shingles, in adults. Chickenpox is extremely contagious, and can be spread by direct contact, droplet transmission, and airborne transmission.  Chickenpox is an extremely contagious infection caused by the varicella-zoster virus. The most commonly recognized symptom of chickenpox is the development of multiple itchy blisters all over the body. The blisters typically start on the face and trunk before spreading.  Chickenpox facts. 1  Chickenpox is caused by the varicella-zoster virus which also causes shingles. 2  Chickenpox is highly contagious and spreads by contact with someone with chickenpox. 3  Fever, malaise, and a rash (red spots, blisters, and crusted lesions) are all symptoms and signs of chickenpox. 1 Fever, malaise, and a rash (red spots, blisters, and crusted lesions) are all symptoms and signs of chickenpox. 2  Treatment for chickenpox is basically supportive. 3  Although usually self-limited, chickenpox can also cause more serious complications, including pneumonia, encephalitis, and secondary skin infections. Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV). The most common late complication of chickenpox is shingles (herpes zoster), caused by reactivation of the varicella zoster virus decades after the initial, often childhood, chickenpox infection. Shingles is caused by the same varicella zoster virus that causes chickenpox. After a person recovers from chickenpox, the virus stays dormant in the body and for reasons that are not fully know, reactivates years later. According to the CDC, one out of three people in the United States will get shingles. Symptoms & causes. Chickenpox, or varicella, is caused by the varicella-zoster virus, which is related to the herpes virus. The infection has three stages. It starts out with the appearance of little, itchy bumps.
http://www.nhs.uk/Conditions/Chickenpox/Pages/Causes.aspx http://www.webmd.com/vaccines/tc/chickenpox-varicella-topic-overview http://umm.edu/health/medical/reports/articles/shingles-and-chickenpox-varicellazoster-virus http://www.healthgrades.com/conditions/chickenpox http://www.medicinenet.com/chickenpox_varicella/article.htm https://en.wikipedia.org/wiki/Chicken_pox http://www.livescience.com/34710-chickenpox-shingles-symptoms-treatment.html
what are chicken pox caused by