Viruses/Fungi 2 Flashcards Preview

8501 Clin Med > Viruses/Fungi 2 > Flashcards

Flashcards in Viruses/Fungi 2 Deck (22):
1

Viruses tend to become:

- latent
- chronic
- recurrent

2

How many types of herpesviruses?

8

3

How are herpesviruses similar/different?

- morphologically similar
- distinct biologic factors

4

This is more common than symptomatic illness with herpesviruses

subclinical primary infection

5

How long do the herpesviruses stay with the host?

Each type persists in a latent state for the life span of the host

6

Herpesviruses can be severe/fatal in these groups due to opportunistic infection

- infants
- immunocompromised

7

Type 1

HSV-1

8

Type 2

HSV-2

9

Type 3

Varicella-zoster

10

Type 4

Epstein-Barr infectious mononucleosis (EBV)

11

Type 5

Cytomegalovirus (CMV)

12

Type 6

Roseola human herpes virus (HHV)

13

Type 7

Herpes serologically associated with roseola (HHV)

14

Type 8

Human herpes associated with Kaposi's sarcoma (HHV)

15

HSV-1, HSV-2 infect here

- any organ
- mucocutaneous site

16

With HSV-1 and 2, what triggers reactivation of the latent virus?

- physical stress
- psychological stress

17

What are some of the other infections that occur with HSV-1 and 2?

- viral meningitis
- herpes encephalitis
- fetus acquisition of HSV
- herpetic keratitis
- herpetic whitlows
- disseminate to visceral organs

18

viral meningitis

inflammation of meninges surrounding the brain

19

herpes encephalitis

- infection of brain tissue
- rare

20

fetus acquisition of HSV

- 50% probability
- can be fatal if untreated

21

What reduces the risk of fetus acquisition of HSV?

c-section

22

What is herpetic keratitis?

- ulceration of the cornea from infection
- common cause of corneal blindness

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