Overview:
Chicken pox is one of the most common infectious diseases of childhood and is highly contagious. It is easily recognised by its distinctive rash.
Signs and Symptoms:
Chicken pox occurs most frequently in children under 9 years old, and is characterised by symptoms such as:
* A very itchy, spotty rash that spreads from the torso to the limbs
* The rash advances from these red spots to raised pimples and then into fluid-filled blisters which eventually drain and form a crust (scab)
* Headache, high fever and chills may occur at the same time or may slightly precede the rash
* Usually runs its course in two weeks, although may be more serious in adults and new born babies
Causes and Organs Affected:
Chicken pox is caused by the herpes zoster virus.
It is spread by droplets from a sneeze or cough, or by contact with the clothing, bed linen, or oozing blisters of an infected person.
The time between infection and commencement of symptoms averages from 13 to 18 days but can take as long as 21 days; the disease is most contagious a day before the rash appears and up to 7 days after, or until the rash forms scabs.
People who have had chickenpox almost always develop lifetime immunity to the condition, but the virus often remains dormant in the body and may sometimes recur as shingles later in life. Although some infants may have partial immunity in the first six months of life, all infants must be considered to be susceptible to the disease from birth. (Ref Merck Index and Funk and Wagnall family medical guide)
Risk Factor:
Chickenpox, which is caused by the varicella-zoster virus, is highly contagious to people not immune to it. The disease spreads quickly, especially in locations where people are in close contact, such as child care facilities, schools and families. The virus is transmitted by direct contact with the rash or by droplets dispersed into the air by coughing or sneezing.
Treatment:
Chicken pox is extremely contagious. Keep your child home until most of the vesicles are dry and the scabs have fallen off. Avoid contact with children and adults infected with chicken pox in order to avoid catching it yourself.