Viral and Chlamydial Respiratory Tract Infections Flashcards

1
Q

weakness/paralysis similar to poliovirus, non-polio enteroviruses and West nile virus =

A

acute flaccid myelitis

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2
Q

What two syndromes are associated with complications of flu infection (other than pneumonia)

A
  1. Reyes syndrome

2. Guillain-Barre syndrome

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3
Q

Which form of chlamydiae is the infectious, nongrowing form responsible for dispersal

A

Elementary body

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4
Q

What is the major form of transmission of rhinovirus?

A

hands = vector in person-to-person transmission

aerosol and fomites possible

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5
Q

Which form of chlamydiae is the growing/vegetative form

A

reticulate body

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6
Q

What make chlamydiae act like a virus?

What makes it act like a bacteria?

A
virus = energy parasite, obligate intracellular parasite 
bacteria = binary fission
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7
Q

What are the two forms chlamydiae assumes

A
  1. elementary body (spore like)

2. reticulate body (growing/vegetative form)

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8
Q

antigenic subtypes of the flu are based on :

A

envelope proteins

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9
Q

What is different about giving a flu vaccine to a child versus and adult

A

children under 9 need TWO ADMINISTRATIONS

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10
Q

How long is immunity to rhinovirus?

What is this referred to as?

A

18 months

“transient” immunity

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11
Q

What age group has the greatest incidence of rhinovirus in the winter

A

children and young adults

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12
Q

What specifically happens during an antigenic drift of the influenza virus

A

point mutations of H or N proteins

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13
Q

What is in a Quadrivalent form of a flu vaccine

A

2 type A viruses

2 type B viruses

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14
Q

Why can the influenza virus go through antigenic shift and drift easily while other viruses cannot

A

segmented genome

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15
Q

What is the major reservoir for flu virus

A

avian

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16
Q

What specifically happens during an antigenic shift of the influenza virus

A

recombination involving entire genome segments encoding H or N gene

*implies mixed infections occur

17
Q

What is the #1 adverse effect of the flu vaccine

A

pain at the site of injection

18
Q

Which cells are more heavily infected with a cold (ARD)

A

cells lining nasal passage and pharynx

19
Q

The three types of flu (A, B, and C) are defined by:

A

nucleocapsid proteins

20
Q

What does the “N” stand for in naming flus

A

neuraminidase (viral penetration and release from infected cells)

21
Q

What does the “H” stand for in naming flus

A

H hemagglutinin (viral attachment)

22
Q

What are the four potential viruses associated with a cold (ARD)

A

rhinovirus
coronavirus
adenovirus
“unknown virus”

23
Q

How are flu vaccines grown

A

inside of embryonated chicken eggs

24
Q

What type of flu vaccine can you give to elderly patients to increase immune response

A

high potency and adjuvanated

25
Which type of flu is the worst
type A type B can also cause epidemics and C is weak
26
Chlaymidae trachomatis can cause what respiratory infection
infant pneumonia
27
Chlamydiae pneumonia is most associated with:
atherosclerosis
28
Chlamydiae trachomatis in an infant usually goes to which type of tissue
ocular
29
Regarding the flu, what is the thing that actually kills patients
secondary pneumonia watch out for "Return of fever" ***he made a big point of this in the lecture and told us to "add it to our notes"