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Symptoms of Chickenpox

Usually patients have no obvious symptoms occur before the outbreak of the disease, which is accompanied by fever, fatigue, headache and lack of appetite. Symptoms begin between 10 and 21, days after infection. The master characteristic is the appearance of flat red spots, that are taking gradually raised into blisters or vesicles. These cause a great itching, break easily and form a crust that emerge and disappear in about two weeks. The process extends through the sixth day of illness.

The spots appear all over the body, especially on the trunk and the scalp in successive outbreaks. Healthy children may develop up to 500 skin lesions that sometimes leave a permanent mark. In severe cases the spots are spread over the extremities and face. They can appear sores in the mouth, eyelids, rectum, vagina, and respiratory tract.

Prevention

The aim of the vaccine is to prevent the spread of the disease, its complications and subsequent reinfection in the form of herpes zoster. It can be administered in a single dose is well tolerated and generally no important reactions in healthy children and adolescents. Side effects are mild and manifest as redness, pain and swelling in the area where applied. It can cause dizziness, fatigue, fever or nausea.

The vaccine prevents the disease by up to 80 percent of cases and is administered to healthy children between 12 and 18 months of age. From the age of 13 can be immunized with two doses. It can be applied along with other vaccines, such as measles, rubella, mumps, polio, hepatitis B and meningitis. However, it should be administered to people with weak immune systems or pregnant women. People who have not been vaccinated at the time and are at substantial risk of complications after receiving antibodies contracted the disease.