Chapter 22: Skin Infections - Viral Diseases of the Skin

Question 1

What is the VIRUS called from Varicella (chickenpox)?

Answer 1

• Varicella-Zoster virus (Human Herpes virus 3)

Question 2

Is varicella contagious?

Answer 2

very much so

Question 3

How is Varicella transmitted?

Answer 3

transmitted by respiratory droplets

Question 4

How long is incubation period for Varicella?

Answer 4

• can last 10-21 days

Question 5

What does varicella develop into? (2)

Answer 5

• characteristic rash
• raised itchy lesion

Question 6

The Varicella-Zoster Virus remains LATENT for years. which nerves is it latent in?

Answer 6

• nerve cells

Question 7

Varicella can be reactivated years later. What is this disease called, and what does it result in?

Answer 7

• Shingles
• painful lesions

Question 8

How do you treat Varicella?

Answer 8

Acylclovir

Question 9

How do you prevent Varicella-Zoste Virus?

Answer 9

Attenuated whole agent vaccine
- part of MMRV

Question 10

What is Rubeola commonly known as?

Answer 10

• Measles virus

Question 11

How is Rubeola transmitted?

Answer 11

• respiratory droplets
• highly contagious

Question 12

What is the incubation period of rubeola?

Answer 12

10-12 days

Question 13

What are the symptoms of rubeola? (3)

Answer 13

• cold-like symptoms
• Koplik spots
• macular rash

Question 14

What complications can Rubeola cause? (4)

Answer 14

• viral pneumonia
• encephalitis
• brain damage
• SSPE

Question 15

How can you treat Rubeola?

Answer 15

• none

Question 16

How can you prevent measles?

Answer 16

• Attenuated vaccine (part of MMRV)

Question 17

Can measles be eradicated? why or why not?

Answer 17

• yes cuz humans are the only reservoirs

Question 18

How many people die from measles before and after the vaccine was created?

Answer 18

Before - 2.6 million annually
After - approx 200 k

Question 19

What is Rubella? (3)

Answer 19

• German measles
• Rubella VIRUS
• milder disease than measles

Question 20

What are the symptoms of rubella?

Answer 20

• faint pink rash

Question 21

What complications can occur if a mother is infected with Rubella during the first 3 months of pregnancy? (2)

Answer 21

• fetus can develop congenital rubella syndrome
• birth defects include eye cataracts, deafness, heart defects, intellectual disability, still birth

Question 22

How can you treat Rubella?

Answer 22

• no treatment

Question 23

How do you prevent rubella? (2)

Answer 23

• attenuated vaccine (MMRV)
• Cannot give it to pregnant mothers