Chickenpox

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Chickenpox :'(


Description of virus that causes the disease.

Varicella Zoster Virus
  • DNA virus of the herpes group
  • Infecting particles can be found in the upper airways and fluid pats of the vesicles (blisters)
  • Varicella: produces vesicular pruritic disseminated lesions at different rates
    most common in children and causes more serve illness in adults
  • Zoster: lesions are localized and painful, often involving the trunk (torso)
    most common in adults
  • genome size 125 kbp, long and short fragments with a total of 4 isometric forms

Varicella Zoster virus in the skin:
clip_image003.jpg



Viral Specificity:

  • affects the respiratory track from inhalation
  • occurs in lymph nodes and attacks the other cells
  • virus is specific and spreads throughout the body
(Part of the body or tissue type or hosts affected)


Symptoms and progression of the disease:

  • 2 days of fever and sore throat
  • within 24 hrs a rash (250-500 blisters) develops on torso then develops within 7-10 days to the rest of body
  • major- skin infection, pneumonia, neurological complications, Reye's syndrome
  • rare complications: hepatitis, kidney disease, ulcers of the intestinal tract, and inflammation of testes (orchitis) have all been described.
Appearance of chickenpox:
external image moz-screenshot-4.png
http://www.health.com/health/static/hw/media/medical/hw/n5550205.jpg
http://www.health.com/health/static/hw/media/medical/hw/n5550205.jpg


(Include major complications. Provide pictures or graphics)

Common Methods of Transmission:
  • skin to skin contact!!!!!!!!!
  • or passed through the air from a cough or sneeze.
holding-hands.jpg

Treatment and Prevention:
  • vaccine
  • proper hygiene
  • calamine lotion for blisters
  • cool baths every 3-4 hours
  • allergy medicines
  • drink fluids
  • if contagious keep isolated

Miscellaneous:
Discovery- Giovanni Filippo- 1500 in Italy.
Named- Richard Morton- 1600 due to the thought of a milder form of smallpox.
Difference- William Heberden- 1700 noticed the difference between the two.
Why is it called chickenpox?
- the blisters look as if the skin was picked by chickens.

NOT CAUSED BY CHICKENS!



Resources accessed:

http://www.emedicinehealth.com/chickenpox/page2_em.htm#Chickenpox%20Causes

http://www.wisegeek.com/what-are-the-different-methods-of-chickenpox-transmission.htm