Cause of disease
Chickenpox is caused by the varicella-zoster virus
Transmission of Disease
Transmission occurs through direct contact with someone infected with the chickenpox virus, or through the air from an infected person's coughing or sneezing.
Someone can chickenpox can spread the virus even before he or she has any symptoms
Chickenpox is most easily spread from 2 to 3 days before the rash appears until all the blisters have crusted over.
How Contagious is the Disease?
How virulent is the disease?
It takes from 10-21 days to develop symptoms after being exposed to a person infected with chickenpox. The usual time period is 14-16 days.
Symptoms of the Disease
Before the rash appears:
- Loss of appetite
- Tiredness and feeling sick
Once the rash appears:
- raise pink or red bumps
- fluid-filled blisters
- crust and scabs
New bumps appear after several days.
How is the disease diagnosed?
The symptoms alone are enough to diagnose chickenpox. Diagnosis may be unclear after a physical examination, then diagnostic tests may be required.
How successful is the treatment?
Treatment of the disease depends on the age, health, and severity of illness. There is no cure for people with Chickenpox. People will get the vaccine to help with symptoms but chickenpox never really goes away.