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Jaspie - Microbiology > 07 - Virology > Flashcards

07 - Virology Flashcards

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Biology 101 flashcards
1
Q

All enveloped viruses acquire their envelope from the plasma membrane except for:

A

Herpes virus - acquired from the nuclear membrane

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2
Q

All viruses are haploid except for:

A

retrovirus - diploid

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3
Q

Enumerate: RNA viruses with segmented genome (4)

A

Bunyaviruses
Orthomyxovirus (Influenza)
Arenaviruses
Reoviruses

BOAR

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4
Q

Enumerate: Negative-stranded RNA viruses: (6)

A 
Arenaviruses
Bunyaviruses
Paramyxoviruses
Orthomyxoviruses
Filoviruses
Rhabdoviruses

Always Bring Polymerase Or Fail Replication

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5
Q

Gold standard in diagnosis of viral infection:

A

Presence of viral DNA or RNA

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6
Q

First vaccine known to prevent a human cancer:

A

HBV

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7
Q

Most common sites of viral infection and disease:

A

oropharynx and respiratory tract

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8
Q

All DNA viruses have double-stranded DNA except:

A

Parvovirus

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9
Q

All DNA viruses have linear DNA except:

A

Hepadna, Papilloma, and Polyoma

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10
Q

All DNA viruses are icosahedral except:

A

Poxvirus

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11
Q

All DNA viruses replicate inside the nucleus except:

A

Poxvirus (cannot enter the nucleus because of its size)

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12
Q
  • The only virus with a fiber:

- What is this fiber called?

A
  • Adenovirus

- Penton fiber

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13
Q
  • Most common viral STD:

- What strains cause this?

A
  • Condyloma accuminata

- HPV 6 and 11

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14
Q

The only hepatitis virus whose genome is DNA:

A

Hepatitis B virus (Hepadna)

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15
Q

Enumerate: diseases with blueberry muffin lesions: (3)

A
  • Congenital Rubella
  • Congenital CMV
  • Disseminated Neuroblastoma
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16
Q
  • Identify: syndrome of swelling of the liver and brain, leading to encephalitis
  • what viral infection can cause this syndrome?
A
  • Reye syndrome

- VZV

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17
Q

Most common infectious cause of congenital abnormalities:

A

congenital CMV infection

18
Q
  • Most common cause of blindness in AIDS patients:

- at what CD4 counts does this condition occur?

A
  • CMV retinitis

- CD4 < 40

19
Q
  • The only disease that has been eradicated from the face of the earth:
  • What is the name of the virus?
A
  • smallpox

- Variola virus

20
Q

Identify: the largest viruses

A

Variola virus

21
Q

The only DNA virus that produces DNA by reverse transcription with mRNA as the template:

A

Hepatitis B virus (Hepadnaviridae)

22
Q

All RNA viruses have single-stranded DNA except:

A

Reovirus and Rotavirus

23
Q

All RNA viruses replicate in the cytoplasm except:

A

Influenza and Retrovirus

24
Q

Most common cause of myocarditis and pericarditis:

A

Coxsackie virus

25
Q

Most common clinical form of Polio virus infection:

A

abortive poliomyelitis

26
Q

Most common cause of aseptic meningtis:

A

Coxsackie virus

27
Q

Enumerate: (5) viruses of the Picornaviridae family:

A
  • Poliovirus
  • ECHO (Enteric Cytopathic Human Orphan) virus
  • Rhinovirus
  • Coxsackie virus
  • Hepatitis A virus

PERCH on a PIC!

28
Q

Most common cause of nonbacterial diarrhea in adults:

A

Norwalk virus

29
Q

Most common cause of childhood diarrhea:

A

Rotavirus

30
Q

Each year, _______ is the most common cause of respiratory tract infections.

A

Influenza (A)

31
Q

Enumerate: member viruses of the Paramyxoviridae family:

A
  • Parainfluenza virus
  • RSV (Respiratory Syncytial Virus)
  • Measles virus
  • Mumps

PaRaMMyxovirus

32
Q

Most important cause of pneumonia and bronchiolitis in infants:

A

RSV (Respiratory Syncitial Virus)

33
Q

The only vaccine that is routinely used post-exposure:

A

Rabies virus

34
Q

Most prevalent blood-borne pathogen:

A

Hepatitis C virus

35
Q

Enumerate: (5) signs of Congenital Rubella Syndrome:

A
  • cataracts
  • sensorineural deafness
  • mental retardation
  • patent ductus arteriosus (PDA)
  • blueberry muffin baby

Bulag, Bingi, Bobo, Butas ang puso, Blueberry Muffin

36
Q

Most complex of the known retroviruses:

A

HIV

37
Q

Enumerate: (give organism and diagnosis)

AIDS-defining illnesses at CD4 < 500:

A
  • Mycobacterium tuberculosis - disseminated TB
  • Herpes Simplex Virus - HSV esophagitis
  • Candida albicans - esophageal candidiasis
  • Human Herpes Virus 8 - Kaposi sarcoma

MHCH!

38
Q

Enumerate: (give organism and diagnosis)

AIDS-defining illnesses at CD4 < 200:

A
  • Pnemocystis jirovecii - PCP pneumonia
  • Toxoplasma gondii - cerebral toxoplasmosis
  • Coccidiodes immitis - coccidioidomycosis
  • Cryptococcus neoformans - meningitis
  • Crytosporidium parvum - chronic diarrhea

PTCCryCry

39
Q

Enumerate: (give organism and diagnosis)

AIDS-defining illnesses at CD4 < 50:

A
  • Mycobacterium avium-intracellulare complex (MAC) - invasive pulmonary disease
  • Histoplasma - histoplasmosis
  • Cytomegalovirus - CMV retinitis
40
Q
  • These viral strains (2) can cause croup
  • another name for croup
  • radiographic sign for croup
A
  • parainfluenza virus 1 and 2
  • laryngotracheobronchitis
  • steeple sign

Jaspie - Microbiology (14 decks)

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