Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Virology > exam > Flashcards

exam Flashcards

1
Q

Induction of passive-active
immunity is useful in the prevention
of which one of the following sets of
two viral diseases?
a. Hepatitis A and dengue
b. Influenza and varicella
C. Rubella and measles
d. Hepatitis B and rabies
e. Mumps and yellow fever

A

Hepatitis B and rabies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of the following is incorrect?
a. Strongyloides can produce an internal reinfection or autoreinfection
b. Trichuris trichiura is transmitted through the skin during walking barefoot on the grass.
C. Most of the intestinal cestodes are treated with praziquantel
d. Scotch Tape test is used for diagnosing Enterobius Vermicularis infection

A

Trichuris trichiura is transmitted through the skin during walking barefoot on the grass.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Hydatid cyst
a. Mostly found in forestrangers
b. Is caused by Toxoplasma gondil
C. doesn’t contain infectious agents
d. develops in the liver

A

develops in the liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following with regards to the river blindness is not correct?
a. It is transmitted by the invasive bite of a black fly
b. Causative agent is Onchocerca Volvulus
C. Microfilariae released from the male worms that cause the most severe damage
d. Visual complications are mainly found in
African men

A

Microfilariae released from the male worms that cause the most severe damage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A young male with abdominal pain, bloating, loose stool and weakness. About a month ago he returned from a 3-week hiking and camping trek to the Mount Everest
Base Camp in Nepal. The trek involved only high-
elevation hiking, since he flew in and out of
the 12,000-ft starting point. Which of the following is an important consideration for the diagnosis?
a. The presence of domestic animals en route
b. The source and purification of water
c. Insect bites
d. Exposure to high-level UV radiation

A

The source and purification of water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A sexually active 24-year-old woman complains of vaginal itching and vaginal discharge. For diagnosis
of trichomoniasis, you should include which of the
following diagnostic tests?
a. Ova and parasite vaginal smear
b. Enzyme-linked immunoassay (ELISA)
test of serum
C. Ova and parasite fecal smear
Wet mount of vaginal fluid
d. Specific serologic test

A

Ova and parasite fecal smear
Wet mount of vaginal fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which of the following
causes development of the
liver abscess ?
a. Echinococcus granulomatous
b. Entamoeba Histolytica
c. Giardia laamblia
d. Trichomonasvaginalis

A

Entamoeba Histolytica

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which of the following causes blockage of the bile ducts?
a. Ascariasis lumbricoides
b. Ancylostoma duodenale
c. Plasmodium falciparum
d. STRONGYLOIDES STERCORALIS
StrongyloidesStercoralis

A

Ascariasis lumbricoides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which of the following is correct?
a. Entamoeba histolytica is a
noninvasive protozoa causing mild
diarrhea
b. plasmodium falciparum replicates in old as well as young red blood cells
C. Chagoma is caused by Leishmania donovani
d. Toxoplasma gondii infection leads to fatal outcome in immunocompetent individuals

A

plasmodium falciparum replicates in old as well as young red blood cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Kala-azar is:
a. Caused by Leishmania major
b. caused by the trepanosoma cruzi
c. Is effectively treated with the
metronidazole
d. leads to death if untreated

A

leads to death if untreated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The 27-year-old pregnant mother of a child
diagnosed with erythema infectiosum is concerned for the health
of her fetus. What would be the most likely outcome of fetal infection with the virus causing her child’s disease?
a. Patent ductus arteriosus
b. Hydrocephalus
c. Hydrops fetalis
d. Microcephaly
e. Mental retardation

A

Hydrops fetalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which of the infectious agents are transmitted by tsetse fly?
a. Hantavirus
b. Zika virus
c. Sandfly virus
d. Leishmania spp
e. Trypanosoma brucei gambiense

A

Trypanosoma brucei gambiense

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which is the most frequently mutable part of the HIV genome that determines the antigenic variation of the strain?
Gag
Pol
Env
Pro
Mut
a. Pro
b. Env
c. Gag
d. Mut
e. Pol

A

Env

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which of the cellular molecules are used by HIV as the receptor for the attachment to the gastrointestinal cells?
a. RANTES
b. CD4
c. CXCR4
d. CCR5
e. Integrin a-4 B-7

A

Integrin a-4 B-7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

All of the statements with regards to the HIV infection are correct except
a. Opportunistic infections are the main cause of death of AIDS patients
b. In developing countries male and female are equally affected
c. Primary symptoms are nonspecific or absent at all
d.Clinical latency is characterized by symptomatic expression of the infection
e.Period of clinical latency can last up to 10 years

A

Clinical latency is characterized by symptomatic expression of the infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

All of the following are the neurological complications for pediatric AIDS patients except ?
a. Behavioral changes
b. Encephalopathy
C. Dementia
d. Meningitis
e. Seizures

A

Dementia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which of the hepatitis viruses are mostly transmitted by sexual contact?
a. HBV
b. HDV
c. HCV
d. HEV
e. HAV

A

HBV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

An individual is infected with a virus that replicates causing clinical
manifestations. The manifestations
later subside; however, virus is not cleared from the body. Viral replication occurs continuously throughout life.
Which term describes
this type of infection?
a. Chronic
b. Slow
C. Acute
d. Localized
e. Latent

A

Latent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Which Hepatitis virus is associated with the increased lethality in pregnant women?
a. HBV
b. HEV
c. HCV
d. HAV

A

HEV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

10 y/o boy has been admitted with pulmonary distress symptoms. He has a crusty to scared lesions on the body and a history of traveling to Central African countries. Which of the following viral family members can be the cause of the disease?
a. Poxvirus
b. Paramyxoviridae
c. Coronaviridae
d. Picornaviridae
e. Parvoviridae

A

Poxvirus

21
Q

What determined the infecting site of the influenza virus?
a. Synthesis of the specific proteases by the respiratory epithelium
b. Decreased local immunity or the airways
C. specific receptors found only on the respiratory epithelium
d. Dysbiosis of the local microbiota
e. pH of the bronchi

A

Synthesis of the specific proteases by the respiratory epithelium

22
Q

Which of the following agents infecting pregnant women won’t lead to fetal damage or stillbirth?
a. Influenza virus
b. Rubella
c. Toxoplasma gondii
d.B19
e. Cytomegalovirus

A

Influenza virus

23
Q

Virus infecting
gastrointestinal tract has a segmented, double-
stranded RNA genome and a double-shelled capsid.
Which of the viral families does the described virus belong to?
a. Astroviridae
b. Adenoviridae
c. Caliciviridae
d. Coronavirida
e. Reoviridae

A

Reoviridae

24
Q

which of the following viruses can’t replicate without the confecting virus?
a. Chikungunya virus
b. Coronavirus
c. Hepatitis D virus
d. Parainfluenza virus
Parainfluenza virus
e. Hepatitis E virus

A

Hepatitis D virus

25
Q

Which of the following can lead to the Giant-cell pneumonia?
a. Rubella in non-immune children
b. Parechovirus in AIDS patients
c.Measles in children with cellular
immunodeficiency
d.Influenza in elderly

A

Measles in children with cellular
immunodeficiency

26
Q

The rational reason for vaccination against Rubella virus is to prevent:
a. death of the
pregnant women
b. encephalitis
c. pneumonia in children
d. stillbirth and congenital disorders

A

stillbirth and congenital disorders

27
Q

Fusion of the infected epithelial cell membranes are found during the infection by:
a. Measles virus
b. Respiratory syncytial virus
c. Influenza virus
d.parainfluenza virus
Parainfluenza virus

A

Respiratory syncytial virus

28
Q

Which of the following protozoal infections are mostly associated with AIDS?
a. Trychomonas vaginalis
b. Cryptosporidium spp.
c. Trypanosoma cruzi
d. Entamoeba histolytica

A

Cryptosporidium spp.

29
Q

The all are the common characteristics of coronaviruses, except?
a. Can cause gastroenteritis
b. Are distributed worldwide
C. Possess cross-reactive antigens
with influenza viruses
d. Contain the largest genomes among RNA viruses

A

Possess cross-reactive antigens
with influenza viruses

30
Q

Vaccinia virus has all of the following attributes except

a. Can cause severe localized or disseminated disease.
b. Is a live, attenuated monkeypox virus.
C. Gene sequences coding for other viral proteins can be inserted into its genome
d. Can induce immunity that lasts only a few years.
e. Has been in use for more than 300 years.

A

Is a live, attenuated monkeypox virus.

31
Q

Patient has been recently diagnosed with HIV infection and the antiretroviral treatment has been administered. After a month his plasma viral load was checked by using RT-PCR.
The number of the viral particles wasn’t decreased below 10 ^6 copies/mL. What might be the reason for the high levels of viral particles in the blood?

a. The test used is not specific and might have led to the false results
b. Not enough time has passed for the viral.
load to be decreased
c. Patient was
misdiagnosed
d. Before administration of the antiviral drugs susceptibility of the strain wasn’t checked

A

Before administration of the antiviral drugs susceptibility of the strain wasn’t checked

32
Q

Which of the following with
regards to leishmaniosis is
correct?
a. Kala-azar is caused by L. braziliensis braziliensis
b. Mucocutaneous leishmaniosis is
caled kala-azar
C. Produces three forms of leishmaniosis based on the tissue or organ involvement
d. transmitted by tsetse fly

A

Produces three forms of leishmaniosis based on the tissue or organ involvement

33
Q

which of the following is incorrect with regards to vaccines?

a. Adenovirus can be used as a vector for chimeric vaccine production
b. Oral live attenuated form of the enterovirus vaccine produces more effective protection
c. Live attenuated vaccines are contraindicated in immunocompromised patients
d. Live attenuated vaccines usually require booster doses for effective immunity to develop

A

Live attenuated vaccines usually require booster doses for effective immunity to develop

34
Q

Cysticercosis is most likely to
be acquired by:
a. drinking water contaminated with
feces of an infected human
b. drinking water contaminated with
feces of an infected COW.
C. ingestion of undercooked pork from an infected pig
d. drinking water contaminated with
feces of an infected pig.
e. ingestion of undercooked beef
from an infected COW.

A

ingestion of undercooked pork from an infected pig

35
Q

Which of the following with regards to the antigenicity of Influenza virus is
correct?

a. Only type A undergoes antigenic drift as well as antigenic shift
b. Antigenic shift occurs only in B and C types of influenza because they
infect only humans
c. Antigenic drift takes place because of the genetic reassortment
d. Every 10-40 years, new subtype of influenza A appears resulting in
pandemic influenza

A

Every 10-40 years, new subtype of influenza A appears resulting in
pandemic influenza

36
Q

All of the following viruses produce intranuclear inclusion bodies except
a. Adenovirus
b. Smallpox virus
c. Varicella-Zoster virus
d. Herpes simplex vIrus

A

Smallpox virus

37
Q

Which of the cellular receptors are used by Herpesviruses for the infection?
a. Glycosaminoglycans
b. proteoglycans
c. Glycoproteins
d. Spingolipids

A

Glycosaminoglycans

38
Q

Which one of the following is most accurate regarding Entamoeba histolytica?
a. Entamoeba histolytica infections
are limited to the intestinal mucosa
and do not spread to other organs.
b. in the microscope, E. histolytica is
recognized by having two sets of paired flagella.
C. Entamoeba histolytica causes
“flask-shaped” ulcerations in the
colon mucosa
d. Domestic animals such as dogs and cats are the main reservoir of E.
histolytica.

A

Entamoeba histolytica causes
“flask-shaped” ulcerations in the
colon mucosa

39
Q

After replication herpesviruses establish latent stage by:
a. Integration it’s DNA in the cellular
chromosome
b. Residing viral DNA as an episome in the nucleus of the host cell
C. Residing viral RNA in the nucleus of the host cell
d. Residing viral RNA in the cytoplasm of the host cel

A

Residing viral DNA as an episome in the nucleus of the host cell

40
Q

which of the following is true with regards to B19

a. Replicated only within actively growing reticulo-endothelial cells
b. Causes chronic anemia in patients with previous hemolytic anemia condition
c. Causes transient aplastic crisis in immunocompromised patients
d. Belongs to
adenovirus family

A

Replicated only within actively growing reticulo-endothelial cells

41
Q

19 year old male comes with complaints of fever, sore throat, weakness. He has a history of living in a dormitory while studying in the collage. Physical examination reveals splenomegaly. What is expected to see in the blood tests?

a. cytomegalic cells
b. anemia
c. Heterophil antibodies
d. Syncytial cells

A

Heterophil antibodies

42
Q

Which of the following is correct?
a. Hepatitis B is mostly transmitted by sexual contact
b. Hepatitis E is a defective virus
c.Hepatitis C is mostly transmitted by sexual contact
d.Hepatitis A is the X only hepatitis virus that can be prevented by vaccination

A

Hepatitis B is mostly transmitted by sexual contact

43
Q

Which of the following childhood infections doesn’t cause rash ?
a. Measles
b. Rubella virus
c. Mumps
d. BI9

A

Mumps

44
Q

Your patient is a 30-year-old woman who returned from traveling in Eastern Europe 1 week ago. While on the trip,
she experienced anorexia, nausea but no vomiting, and
abdominal bloating. For the past 2 days, she has had
explosive watery diarrhea. An examination of her stool
revealed pear-shaped, flagellated, motile
organisms. Of the following, which one is the most likely
cause of this infection?
a. Trichomonas vaginalis
b. Cryptosporidium hominis
c. Entamoeba histolytica
d. Giardia lamblia

A

Giardia lamblia

45
Q

A patient presents with a malodorous vaginal discharge, which according to the patient is significantly worse during menstruation. A motile microbe that is considerably smaller than an epithelial cell is detected in the saline wet microscopic preparation and also a stained preparation (shown in the image). What is the diagnosis?
a. Gonorrhea
b. Bacterial vaginosis
c. Candidiasis
d. Trichomoniasis
e. Chlamydia

A

Trichomoniasis

46
Q

Which one of the following is most characteristic of the microscopic changes seen in rabies virus infected cells?
a. Inclusion bodies in the nucleus of
neurons
b. Inclusion bodies in the cytoplasm of macrophages
C. Multinucleated giants cells
composed of macrophages
d. Multinucleated giants cells
composed of neurons
e. Inclusion bodies in the cytoplasm of neurons

A

Inclusion bodies in the cytoplasm of neurons

47
Q

This virus is the most important cause of gastroenteritis in infants and young children. It causes infections that are often severe and may be life threatening, especially in
infants.
a. Rotavirus, group A
b. Parvovirus
c. Echovirus
d. Orbivirus
e. Norwalk virus

A

Rotavirus, group A

48
Q

Which area in the world has
the highest prevalence
of HIV/ AIDS?
a. Indian subcontinent
b. Southeast Asia
C. The United States
d. States of the former
Soviet Union
e. Sub-Saharan
Africa

A

Sub-Saharan
Africa

49
Q

Anemia is associated with which of the following infections?
a. Wucheria Bancrofti
b. Toxoplasma gondil
C. Taenia solium
d. Diphylobothrium latum

A

Diphylobothrium latum

Virology (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions