Viruses/Fungi 2 Flashcards

1
Q

Viruses tend to become:

A
  • latent
  • chronic
  • recurrent
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2
Q

How many types of herpesviruses?

A

8

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3
Q

How are herpesviruses similar/different?

A
  • morphologically similar

- distinct biologic factors

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4
Q

This is more common than symptomatic illness with herpesviruses

A

subclinical primary infection

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5
Q

How long do the herpesviruses stay with the host?

A

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

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6
Q

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

A
  • infants

- immunocompromised

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7
Q

Type 1

A

HSV-1

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8
Q

Type 2

A

HSV-2

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9
Q

Type 3

A

Varicella-zoster

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10
Q

Type 4

A

Epstein-Barr infectious mononucleosis (EBV)

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11
Q

Type 5

A

Cytomegalovirus (CMV)

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12
Q

Type 6

A

Roseola human herpes virus (HHV)

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13
Q

Type 7

A

Herpes serologically associated with roseola (HHV)

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14
Q

Type 8

A

Human herpes associated with Kaposi’s sarcoma (HHV)

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15
Q

HSV-1, HSV-2 infect here

A
  • any organ

- mucocutaneous site

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16
Q

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

A
  • physical stress

- psychological stress

17
Q

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

A
  • viral meningitis
  • herpes encephalitis
  • fetus acquisition of HSV
  • herpetic keratitis
  • herpetic whitlows
  • disseminate to visceral organs
18
Q

viral meningitis

A

inflammation of meninges surrounding the brain

19
Q

herpes encephalitis

A
  • infection of brain tissue

- rare

20
Q

fetus acquisition of HSV

A
  • 50% probability

- can be fatal if untreated

21
Q

What reduces the risk of fetus acquisition of HSV?

A

c-section

22
Q

What is herpetic keratitis?

A
  • ulceration of the cornea from infection

- common cause of corneal blindness