Chicken Pox

Chicken Pox :

Chicken Pox RAHUL BHASKAR

Slide 2:

Chicken pox is a common disease caused by the varicella zoster virus (VZV) which is a member of the herpes virus family. It is very contagious and usually occurs during childhood (normally 5-9) , but you can get it at any time in your life. It is most common at the end of winter and the beginning of Spring

Slide 3:

Infects about 70% of all children by 18. The rash and fever last for about five days. Approximately 4,000,000 people in the U.S.A. get the chicken pox each year. Most children handle the chicken pox well and recover without any problem within a week.

Slide 4:

Infants less than 6 months old are usually protected from it as long as their mother carries the antibody to this virus. A healthy child less then 13 years old generally has a very mild illness that insures lifelong immunity to the chicken pox. It is unusual to have chicken pox more than once.

Varicella Zoster Virus:

Varicella Zoster Virus Herpesvirus (DNA) Primary infection results in varicella (chickenpox) Recurrent infection results in herpes zoster (shingles) Short survival in environment

Varicella Pathogenesis:

Varicella Pathogenesis Respiratory transmission of virus Replication in nasopharynx and regional lymph nodes Repeated episodes of viremia Multiple tissues, including sensory ganglia, infected during viremia

Varicella Clinical Features:

Varicella Clinical Features Incubation period 14-16 days (range 10-21 days) Mild prodrome for 1-2 days Rash generally appears first on head; most concentrated on trunk Successive crops over several days with lesions present in several stages of development

Herpes Zoster (Shingles):

Herpes Zoster (Shingles) Reactivation of varicella zoster virus Can occur years or even decades after illness with chickenpox Generally associated with normal aging and with anything that causes reduced immunocompetence Lifetime risk of 20 percent in the United States Estimated 500,000- 1 million cases of zoster diagnosed annually in the U.S

Symptoms:

Symptoms Chicken pox often begins with a small fever, body aches and loss of appetite. Within 1or 2 days, the rash appears, normally starting on the chest or back. At first the rash begins as red spots which then form blisters and spreads to the rest of the body.

Slide 10:

The blisters open and form a scab within a few days. The rash can continue to break out for 4-5 days as older lesions crust and heal. Itching can accompany the rash along with fever, swollen lymph nodes, sore throat and general body aches .

Early Chickenpox:

Early Chickenpox

Chickenpox: Varicella-Zoster Virus (VZV):

Chickenpox: Varicella -Zoster Virus (VZV)

Chickenpox: Superficial Vesicles:

Chickenpox: Superficial Vesicles

Chickenpox:

Chickenpox

Cures and treatments:

Cures and treatments Cures There are no actual cures for it ,but you can get a vaccine shot to help prevent it. Treatments Baths with uncooked oatmeal, baking soda, or cornstarch can help relieve itching. Tylenol is used for fever or pain relief. (Aspirin should be avoided.) Antiviral drugs such as Acyclovir may be prescribed. You can put Calamine lotion on the pocks to help stop the itching.

How the chickenpox affects you:

How the chickenpox affects you It makes you have a cold and a runny nose a couple days before the first pock appears. It makes you feel tired and itchy. You should stay at home for at least 5 days after the first pock appears. You are contagious from 1-2 days before the first pock appears until all the pocks are crusted over.