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Micro Mcq 4 Flashcards

1
Q

What condition is M. pneumoniae associated with?

A

Tracheobronchitis

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2
Q

What condition is M. genitalium associated with?

A

Nongonococcal urethritis

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3
Q

What test is the choice for diagnosing Mycoplasmatales infections?

A

Enzyme immunoassays

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4
Q

What is Pl adhesin associated with?

A

Persistent cough

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5
Q

What drug is effective for treating HCV infection?

A

Sofosbuvir

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6
Q

Which hepatitis viruses are non-enveloped?

A

HAV and HEV

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7
Q

What test confirms HEV in stool samples?

A

PCR

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8
Q

Name a standard precaution for infection control.

A

Hand disinfection with alcohol-based rubs or soap and water

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9
Q

What hygiene practice is included in standard precautions?

A

Respiratory hygiene (cough etiquette)

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10
Q

What equipment is included in standard precautions?

A

Personal protective equipment

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11
Q

How should sharps and patient care equipment be handled?

A

Appropriately

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12
Q

What congenital condition can Rubellavirus cause in infants?

A

Congenital heart disease

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13
Q

Does Rubellavirus infection confer lifelong immunity?

A

Yes

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14
Q

To which genus does Rubellavirus belong?

A

Alphaviruses

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15
Q

How is Rubellavirus transmitted from mother to fetus?

A

Vertical transmission

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16
Q

What are the main symptoms of Rocky Mountain Spotted Fever?

A

High fever and rash

17
Q

What test diagnoses Rocky Mountain Spotted Fever?

A

Weil-Felix test

18
Q

What organism causes Rocky Mountain Spotted Fever?

A

Rickettsia rickettsii

19
Q

Is Rocky Mountain Spotted Fever a zoonosis?

A

Yes

20
Q

What type of cell culture is used for diagnosing CMV?

A

Human diploid fibroblasts

21
Q

What diagnostic method detects CMV viral genome?

A

PCR

22
Q

What material is used for detecting CMV antigens?

A

Bronchoalveolar lavage material

23
Q

What characteristic cells are seen in CMV infection?

A

Owl’s-eye cells

24
Q

How does BSE spread among cattle?

A

Through contaminated feed

25
Q

Is L. pneumophila facultatively intracellular?

A

Yes

26
Q

What are the most commonly isolated serotypes of L. pneumophila?

A

Serotypes 1 and 6

27
Q

Who is at higher risk for L. pneumophila infection?

A

Elderly individuals

28
Q

Are most L. pneumophila infections symptomatic or asymptomatic?

A

Asymptomatic

29
Q

What is the main cause of death in cholera patients?

A

Dehydration

30
Q

What does co-infection with a defective virus lead to in HBV?

A

More chronicity

31
Q

What does HBe antigen indicate?

A

High infectivity and replication

32
Q

What type of virus is HBV?

A

Double-stranded DNA virus

33
Q

When is the HBV recombinant DNA vaccine administered?

A

At birth, 2, 4, and 6 months

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