The duration of chicken pox incubation period for adults may be ten days, for children – about thirteen-seventeen days, sometimes may be three weeks.
The incubation period is divided into three phases:
• In the first phase in which there is an infection, the virus of chicken pox adapts to an organism of the carrier.
• The second phase is the period of active reproduction and accumulation in a human body. The virus of chicken pox occupies mucosa surfaces of the top respiratory organs where the initial nidus of infection is formed, and later the infection starts covering other areas affecting all cells located on its way.
• At the end of the incubation period, in so-called third phase, the virus gets into blood of the patient and with its help “captures” the whole organism. With blood flow viruses move to skin cells where there is an intracellular reproduction. As soon as viruses’ quantity in skin cells is enough rashes start to declare themselves.
Passing all three phases of the incubation interval by the virus is absolutely optional. The acute period of the disease may arise on any of phases; that is why there is no exact term of virus incubation.
Chicken pox may pass, though very seldom, in more hidden form. Rash may appear in less noticeable areas (for example, under head hair coat), and rash will be light. In this case developing of the disease may not be noticed. However, people who contacted to the patient will catch without fail.