67-Role of Viruses in Disease

Question 1

What are the major sites of viral infection and disease?

Answer 1

• Major sites are: respiratory tract; GI tract; epithelial, mucosal, and endothelial lining of skin, mouth, and genitals; lymphoid tissue; liver and other organs; and CNS.

Question 2

What are the flu-like Sx of viral infections?

Answer 2

• Fever, malaise, anorexia, headache, body aches are the classic flu-like symptoms that come with many viral infections. This is because viruses induce interferon and cytokines which increase body temp (fever) and make you feel worse.

Question 3

What are macules?

Answer 3

flat colored spots

Question 4

What are papules?

Answer 4

slightly raised from immune/inflammatory response

Question 5

What are nodules?

Answer 5

bigger than papules

Question 6

What are vesicular lesions?

Answer 6

blisters, contain virus. Warts are a big 1.

Question 7

How can you prevent transmission of viral infections?

Answer 7

Have common sense.