Micro MCQ 3 Flashcards

1
Q

What step does amantadine act on in Orthomyxoviruses replication?

A

Uncoating step

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2
Q

Where does transcription take place in Orthomyxoviruses?

A

Nucleus

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3
Q

How are Orthomyxoviruses transmitted?

A

Via droplets

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4
Q

Describe the structure of Orthomyxoviruses.

A

Linear, negative-sense, single-stranded RNA viruses that are segmented, helical, and enveloped

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5
Q

What symptom is caused by measles?

A

Koplik’s spots against molar teeth

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6
Q

Where do Paramyxoviruses replicate?

A

Epithelial cells of the upper respiratory tract

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7
Q

What is the most common cause of bronchiolitis?

A

Respiratory syncytial virus

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8
Q

What complications can mumps cause?

A

Orchitis, epididymitis, and infertility

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9
Q

What pigments does Pseudomonas aeruginosa produce?

A

Various pigments

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10
Q

Is Pseudomonas aeruginosa an opportunistic pathogen?

A

Yes

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11
Q

What are the optimum temperatures for Pseudomonas aeruginosa growth?

A

37°C and 42°C

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12
Q

What type of bacteria is Pseudomonas aeruginosa?

A

Gram-negative aerobic bacillus

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13
Q

What cell layers can human herpesviruses infect?

A

Many different cell layers

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14
Q

What type of infection does HSV establish?

A

Lytic, latent, and recurrent infections

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15
Q

Which herpesviruses are lymphotropic?

A

Cytomegalovirus (CMV) and Epstein-Barr Virus (EBV)

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16
Q

Name human coronaviruses.

A

HCoV-NL63, HCoV-OC43, HCoV-229E, HCoV-HKU1

17
Q

Is HCoV-RNA a designated human coronavirus?

A

No

18
Q

Name slow virus diseases.

A

Fatal Familial Insomnia (FFI), Kuru, Creutzfeldt-Jakob Disease (CJD), Progressive Multifocal Leukoencephalopathy (PML)

19
Q

Name viruses released without cell lysis.

A

Retroviruses, Papillomaviruses, Herpesviruses, Orthomyxoviruses

20
Q

What is the most virulent strain of H. influenzae?

A

H. influenzae type b

21
Q

What phenomenon does H. influenzae exhibit around Staphylococcus aureus?

A

Satellite phenomenon

22
Q

How many antigenic serotypes does H. influenzae have?

A

Six (a–f)

23
Q

What test detects all capsular serotypes of H. influenzae?

A

Rapid latex agglutination test

24
Q

What is Actinomyces spp. associated with?

A

Intrauterine device use

25
Q

What condition requires prolonged treatment in bacterial associations?

A

Suppurative granuloma

26
Q

What can Nocardia spp. cause?

A

Mycetoma

27
Q

What feature is present in Corynebacterium diphtheriae?

A

Mycolic acids

28
Q

What is the function of glycoprotein 41 (gp41)?

A

Aids in fusion of the virus with host cells

29
Q

What protein is used to confirm HIV diagnosis?

A

P24 capsid protein

30
Q

What disease affects birds due to Aspergillus?

A

Turkey X disease

31
Q

What is a manifestation of aspergillosis?

A

Allergic bronchopulmonary aspergillosis

32
Q

What refers to a fungal ball typically found in the lungs?

A

Aspergilloma

33
Q

What are the infectious particles of Chlamydia called?

A

Elementary bodies

34
Q

Are vaccines available for syphilis?

A

No

35
Q

What heals spontaneously in syphilis?

A

Chancres

36
Q

What Brucella species cause mild infections?

A

Brucella abortus and Brucella canis

37
Q

What type of pathogens are Brucellae?

A

Facultative intracellular pathogens

38
Q

What is the structure of poxvirus?

A

DNA-containing viruses with a central dumbbell-shaped core enclosed by an envelope