What layer of the skin does chickenpox effect?

Epidermis? Dermis?





Thanks.What layer of the skin does chickenpox effect?
Catch 22,


The vesicles of chickenpox form within the epidermis as a result of cellular degeneration accompanied by intracellular oedema. At first the fluid collects in small pockets, but these eventually merge to form the mature vesicle. Chickenpox is caused by the varicella-zoster virus - a herpes virus which also causes shingles later in life - and affects about four million Americans each year. Of this number, five thousand to nine thousand require hospitalization. About one hundred people die of the disease each year. Chickenpox is transmitted through the air or by direct contact with an infected person. Once the virus enters a person's body, there is an incubation period of ten to twenty-one days. During this period, the virus reproduces and grows in the body, but no symptoms appear. The first signs of chickenpox are usually a slight fever and a general feeling of illness. Within a few hours or days, small red spots begin to appear on the scalp, neck, or upper half of the body. About twelve to twenty-four hours later, these spots become itchy and develop into fluid-filled bumps. These bumps, called vesicles, go through a series of changes. First they turn into blisters. Then they break open, and scabs begin to form on top of them. This process goes on for a period of two to five days. Blisters can also form on other parts of the body, including the insides of the mouth, nose, ears, vagina, and rectum. Some people develop only a few blisters. In most cases, however, the number reaches 250 to 500. Toward the end of the disease, scabs begin to fall off. Scarring normally does not occur unless the blisters are scratched and become infected.





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http://kidshealth.org/parent/


infections/skin/chicken_pox.html








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