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Chicken Pox

Bio 101

Raven Treadway

on 28 November 2012

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Transcript of Chicken Pox

What is it? Chickenpox Where did the name Chickenpox come from? You are probably wondering: Chickenpox is caused by the Varicella-zoster virus (VZV) This is the Varicella virus grown in a tissue culture; magnified 500X. How do you get chickenpox? How Do You Treat
Chickenpox? Antibiotics are ineffective because chickenpox is viral rather than bacterial Vaccination Before the vaccine pretty much all children born
every year in the US got chickenpox

80 to 90 percent of American children were infected by the age of nine or ten & adults counted for less that 5 percent of these There are a few theories: Samuel Johnson once thought that
the virus was NOT THAT DANGEROUS
so it was just a "chicken" form of the pox. The skin appeared to have been pecked by chickens where the pox were It was named after chick peas because this was the same size as the lesions But what does it look like on the human skin? In an unvaccinated person: In a vaccinated person Breakthrough pox on a child's abdomen Blister under a child's eye Back of an adult A count of history gives Credit to Giovanni Filippo (1510-1580) from Palermo with the first diagnostic of what seemed to be Varicella.

In the 1600’s Richard Morton described what looked to be a lighter version of smallpox. He called it chickenpox.

Then in 1767 a physician named William Heberden defined that smallpox and chickenpox were different from each other. Raven Treadway
BIO 101- Microbe Project
Fall 2012 This Arrow is pointing to the actual virus inside of a cell This is an electron microscopy picture
of a cell being
attacked by
the virus Chickenpox will spread quickly to people that have never had it. If an infected person is around someone who has never had it they could catch it if the infected person sneezes or coughs around them. If a well person breaths in the small particles that come from the blisters or touch them, then they can become infected. What are the symptoms? The usual symptoms include an itchy rash, blisters, fever, and tiredness

The rash turns into fluid filled blisters which then turn into scabs

At first the rash might show up on the face, back, and chest and then spread to the rest of the body

It takes about one week for all of the blisters to turn into scabs The effects of chicken pox can be serious
in people with weakened immune systems,
adults, pregnant woman, and infants. Serious complications from chickenpox include

• dehydration

• pneumonia

• bleeding problems

• infection or inflammation of the brain (encephalitis, cerebellar ataxia)

• bacterial infections of the skin and soft tissues in children including Group A streptococcal infections

• blood stream infections (sepsis)

• toxic shock syndrome

• bone infections

• joint infections Treatment is done at home and it
is most important to keep the
fever and discomfort down Sodium Bicarbonate is used in baths and antihistamine medication is used to help
ease itching. Acetaminophen is used to reduce fever. Calamine lotion is often used
for itch relief When you have a breakout of chickenpox its important to clean the skin with warm water so to avoid bacterial infection It is also important not to scratch the pox To help children not scratch mittens
or socks can be put on their hands Since 1995 the vaccine for Varicella has been available Some states in the US do require the Varicella vaccination or some type of exemption for matriculation in elementary school The vaccine does not last for a lifetime and a person needs to be vaccinated every five years after the first
immunization In a year about 5 out of every 1,000
needed to be put in the hospital
because of the virus and 100 deaths

Half of these deaths were in adults Chickenpox has a 10-21 day incubation period before the actual symptoms appear. Someone that has contracted the virus is contagious from 1-2 days before rash shows up and the blisters form scabs. This takes anywhere from 5-10 days. The initial infection with the varicella-zoster virus results in chickenpox, and sometimes there are complications including VZV encephalitis or pneumonia. Even when symptoms of varicella have resolved, VZV remains dormant in the nervous system in the trigeminal and dorsal root ganglia. In about 10-20 percent of cases, Varicella reactivates later in life, producing a disease known as shingles or herpes zoster. This usually happens to people that do not have healthy immune systems. Serious complications of shingles include post-herpetic neuralgia, zoster multiplex, myelitis, herpes ophthalmicus, or zoster sine herpete. This is a picture of shingles Varicella virus Sources "Overview." Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 16 Nov. 2011. Web. 10 Oct. 2012. <http://www.cdc.gov/chickenpox/about/index.html>.

James, Stephanie F. Mahalingam, Ravi. Gilden, Don. “Varicella-zoster Virus” Department of Neurology 4.9 (2012): 1509-1514. Academic Search Complete. Web. 20 Nov 2012.

"Chickenpox." - New World Encyclopedia. N.p., 2 Apr. 2008. Web. 12 Oct. 2012. <http://www.newworldencyclopedia.org/entry/Chickenpox>. (Electron Microscopy) It stays right outside the central nervous system Viruses - Chickenpox Vaccine. N.d. Photograph. Perri Dermatology. 19 Oct. 2010. Web. 22 Nov. 2012. <http://perridermatology.com/blog/2010/10/19/viruses-chickenpox-vaccine.html>.
"Major Pharmaceuticals: Item Details and Pharmaceutical Equivalents." Major Pharmaceuticals: Item Details and Pharmaceutical Equivalents. N.p., 2012. Web. 21 Nov. 2012. <http://www.majorpharmaceuticals.com/?m=item_details>.
Sodium Bicarbonate Tablets, 100/Bottle Tristate Surgical. N.d. Photograph. Tristate Surgical. Web. 21 Nov. 2012. <http://tristatesurgical.com/sodium-bicarbonate-tablets-100bottle-p-3585.html>. "Chicken Pox Treatment and Prevention." Health Spa Blog. N.p., 2012. Web. 21 Nov. 2012. <http://www.healthspablog.org/childrens-health/chicken-pox-treatment-and-prevention>.

INTERESTING FACTS: Chicken Pox. 2012. Photograph. INTERESTING FACTS: Chicken Pox. 19 Sept. 2012. Web. 21 Nov. 2012. <http://factsram.blogspot.com/2012/09/chicken-pox.html>. "Can I Get Shingles On My Foot?" Can I Get Shingles On My Foot? - HealthCentral. N.p., n.d. Web. 21 Nov. 2012. <http://www.healthcentral.com/diabetes/h/can-i-get-shingles-on-my-foot.html>.
Breakthrough varicella on the abdomen of a vaccinated child. N.d. Photograph. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 16 Nov. 2011. Web. 21 Nov. 2012. <http://www.cdc.gov/chickenpox/about/photos.html>.
Adolescent female with varicella lesions in various stages. N.d. Photograph. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 16 Nov. 2011. Web. 21 Nov. 2012. <http://www.cdc.gov/chickenpox/about/photos.html>.
Girl with a secondary skin infection due to chickenpox. N.d. Photograph. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 16 Nov. 2011. Web. 21 Nov. 2012. <http://www.cdc.gov/chickenpox/about/photos.html>. "Micrographs of 2011." Advanced Microscopy Facility Micrograph of the Year Competition. N.p., 06 Nov. 2012. Web. 21 Nov. 2012. <http://sydney.edu.au/medicine/bosch/facilities/advanced-microscopy/micrograph-competition/index.php>.

Varicella-zoster Virus. 2011. Photograph. Flickr. By NIAID_Flickr. Yahoo!, 12 Apr. 2011. Web. 21 Nov. 2012. <http://www.flickr.com/photos/niaid/5614251360/in/photostream/>.

Varicella Virus Grown in a Tissue Culture; Magnified 500X. N.d. Photograph. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 16 Nov. 2011. Web. 21 Nov. 2012. <http://www.cdc.gov/chickenpox/about/photos.html>.

Hand Holding Dried Chick Peas. N.d. Photograph. Hand Holding Dried Chick Peas Stock Photos / Pictures / Photography / Royalty Free Images at Inmagine. STOCKFOOD. Web. 21 Nov. 2012. <http://www.inmagine.com/stockfood-064/ptg00842638-photo>.

McLeod, Sonya. "Chickenpox Parties Need to Make a Comeback." Google Images. N.p., 08 Dec. 2010. Web. 21 Nov. 2012. So now we know: Who found Chicken pox
What it is
What it looks like
How you get it
What the symptoms are
How to treat it
How the vaccine works The End
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