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MycoViro Flashcards

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1
Q

TRUE OR FALSE
Collect specimens as soon as possible after the onset of symptoms. The chance of patient recovery is decreased during the first 3 days after onset and is greatly reduced beyond 5 days with many viruses.

A

FALSE

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2
Q

TRUE OR FALSE
Lysogenic infection is the process characterized by the incorporation of viral DNA to the cellular DNA.

A

TRUE

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3
Q

TRUE OR FALSE
Acute Infection is a prolonged infection in which the organism is not immediately killed and may carry the virus for long period of time

A

FALSE

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4
Q

TRUE OR FALSE
In indirect examination, the specimen into cell culture, eggs or animals in an attempt to grow the virus: this is called virus isolation

A

TRUE

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5
Q

TRUE OR FALSE
In indirect examination, the specimen into cell culture, eggs or animals in an attempt to grow the virus: this is called virus isolation

A

TRUE

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6
Q

TRUE OR FALSE
In indirect examination, the specimen into cell culture, eggs or animals in an attempt to grow the virus: this is called virus isolation

A

TRUE

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7
Q

TRUE OR FALSE
Direct examination methods are often also called rapid diagnostic methods because they can usually give a result either within the same or the next day

A

TRUE

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8
Q

What is the first line of defense against viral
infection?

A

Interferon

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9
Q

TRUE OR FALSE
Lytic infection is when virus enters the cell
and hijacks its cellular machinery to rapidly
multiply and in the process kills the cell is
termed as lytic infection.

A

TRUE

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10
Q

Which of the following forms of Kaposi
Sarcoma is associated with individuals that
is infected with a retrovirus that targets CD4+
cells?

A

Epidemic Kaposi Sarcoma

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11
Q

Detection of CMV IgG antibodies using
ELISA is indicative of?

A

Previous infection

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12
Q

Epstein-Barr Virus undergoes latency in what
cell?

A

B-cell

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13
Q

The reactivated form of chicken pox is
known as

A

Shingles

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14
Q

The acute infection caused by Human
Herpes Virus 4 in adults is known as

A

Infectious mononucleosis, Kissing
Disease, IM

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15
Q

Replication of Herpesviruses occurs in the?

A

Nucleus

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16
Q

Atypical lymphocytes present in individuals
with Infectious mononucleosis have a
characteristic _____ appearance in
peripheral blood smear.

A

Dutch skirt

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17
Q

This component of the herpesviruses are
usually suspended in between the envelope
and capsid, which contains enzyme essential
for replication

A

Tegument

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18
Q

Which of the following herpes virus is a
cytolytic, rapid grower and undergoes
latency in kidney cells.

A

Human Herpes Virus 5

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19
Q

Owl’s eye inclusion is a characteristic of?

A

Cytomegalovirus

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20
Q

Which of the following is the causative agent
of 6th disease?

A

Human Herpes Virus 7

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21
Q

Varicella-Zoster Virus undergoes latency in

A

dorsal root ganglia, dorsal root
ganglion

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22
Q

Herpes Simplex Virus 1 undergoes latency in
_____ while Herpes Simplex Virus 2
undergoes latency in _____

A
  • Trigeminal ganglia, Trigeminal
    ganglion
  • Sacral ganglia, Sacral ganglion
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23
Q

TRUE OR FALSE
RT-PCR is the method of choice if you want
to observe for the presence of HAV antigen
and antibody in your serum

A

FALSE

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24
Q

Which of the following is needed by HDV to
cause an infection?

A

HBsAg

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25
TRUE OR FALSE The mode of transmission for Hepatitis Virus A, B and E is Fecal-Oral.
FALSE
26
TRUE OR FALSE Hepatitis A and E virus are all acid sensitive because they don't have envelope to protect them.
FALSE
27
TRUE OR FALSE Recovery from Hepatis A will confer you lifelong immunity to HAV because this virus is monotypic.
TRUE
28
Which of the following antibodies will first increase in concentration when you are infected by HBV?
Anti-HBc
29
All Hepatitis viruses already have a vaccine, EXCEPT?
HCV
30
TRUE OR FALSE When you want to observe the Hepatitis A Virus under the electron microscope, blood is the sample of choice..
FALSE
31
The most numerous form of Hepatitis B Virus is
Pleomorphic spherical form, Pleomorphic spherical, Spherical, Spherical form
32
Most cases of post-transfusion NANB hepatitis were caused by which of the following virus?
Post-transfusion Hepatitis Virus
33
TRUE OR FALSE Hepatitis viruses are grouped together because they are all under the same family.
FALSE
34
TRUE OR FALSE HBcAg can't be isolated from the serum of Hepatitis B patients because they are located inside the pneumocytes
FALSE
35
TRUE OR FALSE Chronic infection can be observed in both Hepatitis A and B infection.
FALSE
36
The complete infectious material of hepatitis B virus is also known as
Dane Particles, Dane Particle
37
HDV viruses are only found in individuals with which of the following infection?
Hepatitis B
38
The increase of which of the following HBV antigen indicates active viral replication:
HBeAg
39
TRUE OR FALSE HBV is the only DNA Virus in the Hepatitis Viruses
TRUE
40
The rise of which of the following HBV antibody indicates immunity?
Anti-HBs
41
TRUE OR FALSE The increase in aminotransferases is due to the invasion of Hepatitis viruses in the pneumocytes.
FALSE
42
TRUE OR FALSE Paralytic poliomyelitis is the most common disease caused by poliovirus, that destroys the motor neurons.
FALSE
43
TRUE OR FALSE Picornaviruses are the second smallest RNA virus.
FALSE
44
_____ is a genus under the picornaviridae that is the most common cause of common cold.
Rhinovirus, Rhinoviruses
45
Which of the following is the capsid symmetry of the poliovirus?
Icosahedral
46
ECHO virus is a contraction for _____.
enteric cytopathogenic human orphan, enteric cytopathogenic human orphan virus, enteric cytopathogenic human orphan viruses
47
There are two vaccines used to prevent the acquisition of poliovirus. Between the 2 vaccines, which is the recommended one?
Live attenuated polio vaccine, sabin vaccine, sabin, oral polio vaccine
48
TRUE OR FALSE According to the WHO, Polioviruses have been completely eradicated in the world last 2020.
FALSE
49
The genome structure of Rhinoviruses is?
Positive sense, SS linear RNA
50
TRUE OR FALSE Coxsackie Virus B is an enveloped virus.
FALSE
51
_____ is the causative agent of Foot-and-Mouth Disease in cloven hoofed animals.
Aphthovirus
52
_____ is a genus under the picornaviridae that is the most common cause of common cold.
Rhinovirus, Rhinoviruses
53
Herpangina is associated with what specie under the family picornaviridae?
Coxsackievirus A
54
TRUE OR FALSE Aphthovirus is a picornavirus that commonly infect humans, and not animals.
FALSE
55
TRUE OR FALSE Poliovirus enter the mucosal surfaces of the gastrointestinal and replicates in the central nervous system where infection occurs.
FALSE
56
TRUE OR FALSE Enteroviruses are under the family Picornaviridae that replicates and cause infection in the G.I. tract only.
FALSE
57
Which of the following is the most common cause of viral diarrhea in adults?
Norwalk virus
58
Complete the virion structure of Rotaviruses. Genome: _____ Capsid Symmetry: _____ Replicates in which part of the cell: _____
ds RNA, Double-stranded RNA, Double stranded RNA, Icosahedral, Cytoplasm,Cytosol
59
TRUE OR FALSE The ability of gastrointestinal viruses to survive in the acid environment of the stomach is due to their segmented genetic material.
FALSE
60
Noroviruses are classified under the family _____.
Caliciviridae
61
TRUE OR FALSE Gastrointestinal viruses like reovirus, rotavirus and norovirus can cause gastroenteritis in humans.
FALSE
62
The star-like morphology of virus under the electron microscope is a characteristic of _____
Astrovirus
63
The term _____ is referred to those viruses that can cause gastrointestinal infection but the information regarding their biology and epidemic characteristics is not yet fully established.
Candidate virus
64
TRUE OR FALSE The destruction of enterocytes due to viral release allows the exit of fluid causing constipation.
65
The most important genus under the family reoviridae is _____.
Rotavirus
66
All of the following gastrointestinal viruses are able to infect humans, EXCEPT?
Reovirus
67
TRUE OR FALSE Orbivirus is non-infectious to man, but are able to infect animals thus termed as the virus under the Reoviridae that is responsible for veterinary diseases.
TRUE
68
TRUE OR FALSE Replication of Reoviruses occur in both the cytoplasm and nucleus of the host's cell.
FALSE
69
The most important infection caused by the genus Coltivirus in humans is _____.
Colorado Tick Fever
70
How can you prevent the spread of Dengue Fever?
Clearing Stagnant Water
71
Zika virus belong to the family _______.
: Flaviviridae
72
Which of the following bunyaviridae is not transmitted by an arthropod vector?
Hantavirus
73
Which of the following is responsible for the spread of Dengue?
Aedes mosquito
74
What are the four subtypes of Ebola virus?
Zaire, Sudan, Reston, Ivory Coast, Tai Forest
75
Dengue hemorrhagic fever results from?
A second infection with a different dengue strain
76
Regarding West Nile virus (WNV), which one of the following is the most accurate?
Most infections are asymptomatic, but the elderly are at risk for encephalitis.
77
The diagnosis of Zika fever include _______.
blood or body fluid test for the presence of Zika RNA
78
The two viruses, which are considered filoviruses, that are the causative agents of highly fatal hemorrhagic fevers are:
Ebola, Marburg
79
What makes up the genome of Rabies virus?
S. S. R N A
80
Which of the following vectors of dengue virus is/are considered as as a concordant fever?
A. albopictus
81
What is the shape of rabies virus?
: Bullet-shaped
82
Which of the following is the causative agent of Argentine hemorrhagic fever?
Junin virus
83
The vector for chickungunya virus is _______.
Aedes Aegypti
84
Which of the following organelles of the host cell is present in the virion of Arenaviruses?
Ribosome
85
Which of the following tissue is the target of the HPV?
Stratified squamous epithelium
86
Generalized lymphadenopathy is usually the characteristic of what HIV stage?
1
87
When the DNA genome is integrated into the host's DNA, what is the name of this DNA genome now?
Provirus DNA
88
The two coreceptors of HIV virus are: _____ receptors _____ receptors
CCR5, CXCR4
89
The most common clinical manifestation of persistent genital HPV infection is?
Cervical intraepithelial neoplasia
90
TRUE OR FALSE The other name of p24 is the matrix protein.
FALSE
91
The most common causative agent of AIDS worldwide is?
HIV-1

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