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Science Project Chickenpox
Transcript of Science Project Chickenpox
It is a very contagious infection caused by the varicella zoster virus.
It usually starts with a blister-like rash, which first appears on the face, and then spreads throughout the body.
Chickenpox can occur at any time, but occurs most often in March, April, and May in temperate climates. Chickenpox is caused by Varicella zoster virus.
Varicella zoster virus is one of eight herpes viruses known to infect humans and vertebrates. Chickenpox is an airborne disease and spread easily through coughing or sneezing as well as direct contact with the secretions from the blisters.
An infected person is contagious about two days before the rash appears, and then continues being so for another four to five days. Chickenpox is a disease of childhood - 90% of cases occur in children aged 14 years and younger.
In the United States, it is estimated that about 3.1 and 3.8 million people gets chicken pox per year.
Annual chicken pox incidence in the UK is 1,290 per 100,000 person years A symptom is something the patient feels and describes, such as headaches. while a sign is something everyone can detect, such as rash.
Before the rash appears: a general feeling of being unwell, fever, aching muscles.
Then the above symptoms are followed by an itchy rash, spots with blisters starts to appear which the red spots are very itchy.
Within about 48 hours the blisters cloud over and start drying out.(a crust develops)
Within about ten days the crusts fall off on their own Chicken pox generally resolves within a week or two without treatment - there is no medication or treatment to "cure" it.
Paracetamol may help with symptoms of high temperature and/or pain.
The patient should drink plenty of fluids, preferably water, to prevent dehydration.
Sugar free popsicles (ice lollies) help ease symptoms of soreness if there are spots in the mouth.
It is important to keep scratching down to a minimum, to prevent future scarring of the skin. Almost everyone gets chickenpox by adulthood.
Chickenpox develops within 10-21 days after contact with an infected person.
Adults are more likely to have a more serious case of chickenpox with a higher rate of complications and death.
Every year there are approximately 5,000, 9,000 hospitalizations and 100 deaths from chickenpox in the United States.
More than 6 million doses of varicella vaccine have been given since it was licensed in March 1995.