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Epidemiology MCQs Final- 5th Year PMU

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Medicine Infectious Diseases, Epidemiology, Parasitology & Tropical Quiz on Epidemiology MCQs Final- 5th Year PMU, created by Med Student on 05/06/2020.
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Question 1

Question
No subclinical infections is present in
Answer
  • Polio
  • Mumps
  • Chicken Pox
  • Hepatitis A

Question 2

Question
The typical form for polio
Answer
  • Inapparent
  • Abortive
  • Non-abortive
  • Paralytic

Question 3

Question
Which of the following is the most dangerous transmission of plague
Answer
  • Blocked Flea
  • Partial Flea
  • Both
  • Unblocked Flea

Question 4

Question
All of the following are transmitted by Aedes aegypti EXCEPT
Answer
  • Dengue hemorrhagic fever
  • Chikungunya fever
  • Rift valley fever
  • Japanese encephalitis

Question 5

Question
Tetanus can be prevented by which of the following
Answer
  • Active immunization with tetanus toxoid every 5-10 years
  • Unproper treatment of contaminated wounds
  • Consider passive immunization with hyperimmune globulin
  • All of the following

Question 6

Question
Which of the following situations represents the best example of passive immunity
Answer
  • a child receiving a vaccination for measles
  • an infant receiving breast milk from the mother
  • production of antibodies by a person with infection
  • a person receiving antibodies for an infection

Question 7

Question
Hand hygiene is a vital part of Infection Control because
Answer
  • The most common mode of transmission is via germs on the hands
  • There is an increased number of infections acquired in health care
  • Anti microbial infections are increasing
  • All of the above

Question 8

Question
Vaccines are available for all of the following EXCEPT
Answer
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Tetanus
  • Measles

Question 9

Question
Rat flea is a vector for all of the following diseases except
Answer
  • Endemic typhus
  • Plagues
  • Leptospirosis
  • Epidemic Typhus

Question 10

Question
Koplik spots are pathognomic of
Answer
  • Mumps
  • Measles
  • Diptheria
  • Typhoid

Question 11

Question
Basic cycle of Epidemic of Bubonic Plague (Orissa 2003)
Answer
  • Commensal rat - Rat fleas - Man
  • Wild rats - Flea - man
  • Wild rodents - Man
  • Man - Man

Question 12

Question
The highest efficiency of transmission of AIDS is seen in
Answer
  • Infected mother to child
  • Heterosexual transmission
  • Intravenous drug users
  • Contaminated drug abusers

Question 13

Question
Which dose of cell culture vaccine is used as pre-exposure prophylaxis of rabies
Answer
  • Single Dose
  • 5 doses
  • 7 doses
  • 3 doses

Question 14

Question
An attenuated vaccine is composed of
Answer
  • killed microorganisms
  • living weakened microorganism
  • inactivated bacterial toxins
  • purified macromolecules
  • recombinant vectors

Question 15

Question
The term bacteriostatic means
Answer
  • living
  • dead
  • inhibits microbial growth and leaves residual film
  • kills microbes

Question 16

Question
Immunocompromised patients are targeted by
Answer
  • parasite
  • opportunistic microorganism
  • pathogen
  • flagellum

Question 17

Question
Causative organism for bubonic plague is
Answer
  • Yersinia pestis
  • Xenopsylla cheopis
  • Xenopsylla astia
  • rattus rattus

Question 18

Question
No subclinical cases are seen in
Answer
  • Rabies
  • AIDS
  • Polio
  • Cholera

Question 19

Question
The most effective concentration of alchohol is
Answer
  • 30%
  • 50%
  • 70%
  • 90%

Question 20

Question
A vaccine that contains parts of virus is called
Answer
  • Subcellular
  • Subunit
  • Recombinant

Question 21

Question
The process of destroying all microorganisms, including spores is known as
Answer
  • asepsis
  • sterilization
  • sepsis

Question 22

Question
The usual incubation period of Pertussis is
Answer
  • 7-14 days
  • 3-5 days
  • 21 - 25 days

Question 23

Question
Isolation is not carried in one of the following
Answer
  • Plague
  • Cholera
  • AIDS
  • Chickenpox

Question 24

Question
Which of the following is true of Chicken pox
Answer
  • Virus is not found in scabs
  • Virus can be grown on chick embryo
  • Caused by RNA virus
  • Does not cross the placental barrier

Question 25

Question
Herd immunity is not important in
Answer
  • Tetanus
  • Pertussis
  • Diptheria
  • All

Question 26

Question
Maternal antibodies are not protective in
Answer
  • Tetanus
  • Diptheria
  • Pertussis
  • All

Question 27

Question
Infectivity of chickenpox is seen up to
Answer
  • As long as patient has fever
  • 3 days after the appearance of rash
  • Till the scab falls

Question 28

Question
Risk of the damage of fetus by maternal rubella is maximum if mother gets infected in
Answer
  • 6-12 weeks of pregnancy
  • 20-24 weeks of pregnancy
  • 24-28 weeks of pregnancy

Question 29

Question
Both active and passive vaccination can be given together in all EXCEPT
Answer
  • Diptheria
  • Tetanus
  • Rabies
  • Hepatitis A

Question 30

Question
Immunisation against pertussis is carried out on
Answer
  • 2 months
  • 3 months
  • 2 & 3 months
  • 2, 3 & 4 months

Question 31

Question
Source of infection can be
Answer
  • a person
  • water
  • food
  • contaminated food

Question 32

Question
The vaccine against polio is
Answer
  • killed
  • anatoxin
  • live
  • recombinant

Question 33

Question
Water is a factor of transmission
Answer
  • fever
  • shigellosis
  • hepatitis b
  • ornithosis

Question 34

Question
In Greece dengue
Answer
  • has not been registered
  • is registered with over 25,000 diseased
  • only sporadic cases
  • is a topic of discussion

Question 35

Question
The salmonella bacteria are transmitted from the source of infection by
Answer
  • speech
  • blood
  • urine and feces
  • only through feces

Question 36

Question
Specific vectors of Q fevers are
Answer
  • body lice
  • human fleas
  • mosquitos
  • ticks

Question 37

Question
Smallpox (variolla) is an infection that is
Answer
  • eradicated
  • eliminated
  • reduced
  • soon to be eracticated

Question 38

Question
Source of infection of ECHO and Coxsackie virus infections are
Answer
  • only sick people
  • only sick animals
  • people sick or carriers
  • sick people and animals

Question 39

Question
The contacts of people suffering from varicella that are under 7 y.o. gets monitored for
Answer
  • 5 days
  • 10 days
  • 14 days
  • 21 days

Question 40

Question
Citizens arriving from countries infected with Cholera are observation
Answer
  • 5 days
  • 7 days
  • 10 days
  • 20 days

Question 41

Question
Vector of Dengue is
Answer
  • Pediculus vestiment
  • Aedes aegypti
  • Ixodes
  • Anopheles

Question 42

Question
Source of infection of Tularemia
Answer
  • Sick man
  • Sick animals
  • Man contaminants
  • Sick men and animals

Question 43

Question
Colienteritis are characterized by
Answer
  • summer season
  • autumn season
  • no seasonality
  • winter seasonal

Question 44

Question
It is recommended influenza immunization to be done
Answer
  • august
  • october
  • announcing the flu epidemic
  • all year round

Question 45

Question
Effective immunoprophylaxis against Japanese encephalitis is carried out with
Answer
  • killed vaccine
  • associated vaccine
  • live vaccine
  • no vaccine

Question 46

Question
The incubation period for Salmenolloisis most often is
Answer
  • from 10-20 days
  • 5 to 10 days
  • from 1-3 days
  • 1 month

Question 47

Question
In collective quarantine in case of Scarlet fever is
Answer
  • 5 days
  • 14 days
  • 7 days
  • 21 days

Question 48

Question
Tetanus classified
Answer
  • respiratory infection
  • roof infection
  • blood infection
  • intestinal infection

Question 49

Question
The least toxic insectoides are
Answer
  • carbamates
  • cholorganic
  • phosphorous organic
  • pyrethroids

Question 50

Question
Mechanism of transmission of cholera
Answer
  • air droplet
  • fecal oral
  • transmissive
  • roofing

Question 51

Question
Suffered from Typhus abdominalis are dispensaries for
Answer
  • 3 months
  • 6 months
  • 10 months
  • 1 year

Question 52

Question
Major source of contamination in Brucellosis are
Answer
  • rodents
  • domestic animals (sheep, cows, goats)
  • wild animal
  • people

Question 53

Question
Immunization against Rubella is carried out on
Answer
  • 4 months
  • 13 months
  • 24 months
  • it is not obligatory and applies only desire regardless of age

Question 54

Question
The most common form of meningococcal infection is
Answer
  • meningococcal nasopharagitis
  • meningococcal tonsilitis
  • meningococcal meningitis
  • healthy meningococcal infection

Question 55

Question
Entrance door with Scarlet fever is
Answer
  • damage skin
  • visible mucous membranes
  • mucous membrane of URT
  • backpack formed by blood-sucking insects

Question 56

Question
Ticks are specific carriers of
Answer
  • Febris flava
  • Lyme Borieliosis
  • Dengue
  • Plague

Question 57

Question
For hygienic hand disinfection apply
Answer
  • Bleach
  • Chlorine
  • Perhydol
  • Manusterol

Question 58

Question
Objects from the external environment are factors of transmission in
Answer
  • blood borne way
  • contact bit way
  • water way
  • sexual way

Question 59

Question
The most wide spread of febris flava is in
Answer
  • Africa
  • Asia
  • Europe
  • Eurasia

Question 60

Question
Reservoir for Marseille fever is [blank_start]Rhipicephalus sanguineus (Dog Tick)[blank_end]
Answer
  • Rhipicephalus sanguineus (Dog Tick)

Question 61

Question
The main factor for transmission of cholera is
Answer
  • air
  • water
  • soil
  • alimentary products

Question 62

Question
The object of the epidemiology of infectious diseases is
Answer
  • infectious process
  • epidemic process
  • source of infection
  • social factor

Question 63

Question
Source of infection for the infectious diseases may be
Answer
  • people
  • mosquito
  • flea
  • all the three above

Question 64

Question
The preparation for disinfection “Hibitan” is from the group
Answer
  • alcohols
  • biguanides
  • chlorine-containing
  • oxydizers

Question 65

Question
The leading factor(s) for distribution of nosocomial infections is (are)
Answer
  • hands of healthcare workers
  • mosquitoes
  • air
  • blood products

Question 66

Question
The re-immunization against measles in Bulgaria is on
Answer
  • 7 years
  • 11 years
  • 12 years
  • 17 years

Question 67

Question
The etiology agent of scarlet fever is
Answer
  • virus
  • rickettsia
  • chlamydia
  • bacteria

Question 68

Question
The source of infection for AIDS are
Answer
  • birds
  • people
  • monkeys
  • people and monkeys

Question 69

Question
What is the mechanism of transmission for salmonellosis
Answer
  • air-borne
  • fecal-oral
  • by insects
  • of the external envelopes

Question 70

Question
The dispensary surveillance for hepatitis A is
Answer
  • 1 month
  • 3 months
  • 12 months
  • 24 months

Question 71

Question
Source of infection for shigellosis are
Answer
  • animals
  • people and animals
  • people
  • birds

Question 72

Question
The contacts of an ill with hepatitis A are under medical surveillance for
Answer
  • 7 days
  • 15 days
  • 20 days
  • 45 days

Question 73

Question
The re-immunization against tuberculosis in Bulgaria is on
Answer
  • 5 years
  • 7 years
  • 15 years
  • 20 years

Question 74

Question
The etiology agent of measles is
Answer
  • virus
  • bacteria
  • chlamydia
  • spirochete

Question 75

Question
The source of infection for meningococcal infection is
Answer
  • the ill man only
  • sick animals only
  • the man – as sick or carrier
  • sick people and animals

Question 76

Question
The re-immunizations against poliomyelitis in Bulgaria are on
Answer
  • 13 month, 24 month, 11 years
  • 16 months and 6 years
  • 24 months, 7 years, 11 years
  • 24 months, 7 years, 12 years

Question 77

Question
The artificially acquired active immunity is created after
Answer
  • application of a vaccine
  • application of serum
  • suffering from some disease
  • transmitted from mother to baby

Question 78

Question
Secondary driving force of the epidemic process is
Answer
  • the etiology agent
  • the susceptibility of the population
  • the social factor
  • the mechanism of transmission

Question 79

Question
The epidemiology of the infectious diseases studies
Answer
  • viral hepatitis
  • hypertonia
  • ulcer
  • echinococcus

Question 80

Question
Chemical sterilization may be done with
Answer
  • chloramine
  • manusterol
  • ethylene oxyde
  • natrium hypochloridi

Question 81

Question
Port of entrance for poliomyelitis is (are)
Answer
  • only mucosa of nasopharynx
  • only intestinal mucosa
  • naso-pharyngeal and intestinal mucosa
  • intestinal mucosa and skin

Question 82

Question
The main route of transmission for S. dysenteriae is
Answer
  • person-to-person contact
  • water-borne
  • alimentary
  • blood-borne

Question 83

Question
Anthroponose infectious diseases are these with source of infection
Answer
  • animals
  • rodents
  • people
  • fleas

Question 84

Question
The rats may be source of infection for
Answer
  • viral hepatitis
  • salmonellosis
  • cholera
  • cholera and salmonellosis

Question 85

Question
Risk group for Crimean-Congo hemorrhagic fever are
Answer
  • seamen
  • alimentary workers
  • stockmen
  • building workers

Question 86

Question
The preparation for disinfection “perhydrol” (hydrogen peroxide 30%) is from the following chemical group
Answer
  • aldehydes
  • oxidizing agents
  • alcohols
  • phenols

Question 87

Question
Spores of microorganisms are destroyed by
Answer
  • chloramine
  • manusterol
  • sterilium
  • glutaraldehyde

Question 88

Question
Source of infection for hepatitis B are
Answer
  • diseased animals
  • only diseased people
  • diseased people and carriers
  • animals and people

Question 89

Question
It is recommended the immunization against influenza to be done
Answer
  • 2 times in the year
  • every year
  • 1 time for five years
  • 1 time for three years

Question 90

Question
The contact to rubella children, aged less than 7 years, who have not passed the disease and who are not immunized, are under medical surveillance for
Answer
  • 5 days
  • 9 days
  • 14 days
  • 20 days

Question 91

Question
After wounding it is applied
Answer
  • 0.5 ml tetanus toxoid
  • 1 ml tetanus toxoid
  • 0.1 ml tetanus toxoid
  • 2 ml tetanus toxoid

Question 92

Question
Specific location of vibrio cholera is
Answer
  • mouth
  • mucosa of small intestine
  • stomach
  • mucosa of large intestine

Question 93

Question
Persons from risk groups, who are convalescent carriers of salmonellosis, are allowed to work after
Answer
  • 7 days and 2 (-) results
  • 15 days and 2 (-) results
  • 15 days and 3 (-) results
  • 20 days and 3 (-) results

Question 94

Question
Re-immunization against pertussis in Bulgaria is done on
Answer
  • 10 month
  • 13 month
  • 6 years
  • 11 years

Question 95

Question
With disinfection we do destruction of
Answer
  • pathogenic microorganisms
  • spores
  • vegetative forms and spores
  • non of the three

Question 96

Question
The definition for epidemic process is
Answer
  • process with source of infection a man
  • interaction between macro- and microorganisms on the level of the population
  • interaction between macro- and microorganisms on individual level
  • interaction between sick people and animals

Question 97

Question
The epidemic measures against the contact children to measles, less than 7 years, who have not passed the disease and are not immunized, are
Answer
  • surveillance for 10 days
  • surveillance for 21 days
  • application of immune-globulin and surveillance for 10 days
  • application of immune-globulin and surveillance for 21 days

Question 98

Question
The air is main factor for infection transmission of
Answer
  • salmonellosis
  • leptospirosis
  • rubella
  • shigellosis

Question 99

Question
The protective titer of antibodies against rubella (reaction inhibition d’hemagglutination) is
Answer
  • 1:4
  • 1:8
  • 1:16
  • 1:32

Question 100

Question
As nosocomial infection may arise
Answer
  • Hemorrhagic fever with renal syndrome
  • Botulism
  • Crimean-Congo hemorrhagic fever
  • Rabies

Question 101

Question
The vaccine against poliomyelitis, used in Bulgaria, is
Answer
  • inactivated
  • toxoid
  • live
  • recombinant

Question 102

Question
Salmonella bacteria are excreted from the source of infection with
Answer
  • air sputters
  • blood
  • feces and urine
  • only with feces

Question 103

Question
Which of the following regiments is the right for the dry sterilizer
Answer
  • 120 °С - 2 h
  • 190 °С - 30 min
  • 160 °С - 2 h
  • 150 °С - 1 h

Question 104

Question
The preparation “glutaraldehyde” is used for
Answer
  • sanitation of objects
  • sanitation of hands
  • only for disinfection
  • disinfection and sterilization

Question 105

Question
Viral hepatitis A is transmitted by the following mechanism
Answer
  • air-borne
  • of the external envelopes
  • vector-borne
  • fecal-oral

Question 106

Question
In autoclave can not be sterilized
Answer
  • metal instruments
  • cotton tampons
  • textiles
  • leather materials

Question 107

Question
The vaccine against diphtheria in Bulgaria is
Answer
  • live
  • inactivated
  • recombinant
  • toxoid

Question 108

Question
The alimentary products are factor for transmission of
Answer
  • rubella
  • varicella
  • tetanus
  • salmonellosis

Question 109

Question
The diseased with diphtheria are discharged after the following negative results from the microbiological test for carriage
Answer
  • 1 (-) test
  • 2 (-) tests
  • 3 (-) tests
  • 4 (-) tests

Question 110

Question
Human Influenza viruses are divided on the following serotypes
Answer
  • А and В
  • А, В and С
  • А, В, С and D
  • А, В, С, D and Е

Question 111

Question
Secondary driving force of the epidemic process is
Answer
  • the etiology agent of the disease
  • the natural factor
  • the susceptibility of the population
  • the source of infection

Question 112

Question
The preparation for disinfection “Hibiscrub” is used for
Answer
  • surgical disinfection of the hands
  • utensils
  • surfaces
  • instruments

Question 113

Question
In Bulgaria the vaccine against tuberculosis is
Answer
  • recommended
  • routine
  • there isn’t effective vaccine
  • forbidden for use

Question 114

Question
The source of infection for scarlet fever is
Answer
  • sick animals
  • sick people
  • animals – carriers
  • people and animals

Question 115

Question
Poliomyelitis viruses are
Answer
  • one type
  • two types
  • three types
  • four types

Question 116

Question
AIDS is not transmitted by one of the following routes
Answer
  • blood-borne
  • sexual
  • vertical
  • person-to-person contact

Question 117

Question
The mechanism of transmission for varicella is
Answer
  • fecal-oral
  • air-borne
  • vector-borne
  • of the external envelopes

Question 118

Question
The epidemic measures against the contact with measles children, less than 7 years, who have not passed the disease and are not immunized, are as follows
Answer
  • surveillance for 7 days
  • surveillance for 17 days
  • immunization and surveillance for 17 days
  • immune-globulin and surveillance for 10 days

Question 119

Question
The usual concentration of chlorine is
Answer
  • 3 % water solution
  • 10 % water solution
  • 1 % water solution
  • 5 % water solution

Question 120

Question
The soil is a factor for transmission of
Answer
  • AIDS
  • Tetanus
  • Rubella
  • Salmonellosis

Question 121

Question
The alimentary products are factor for transmission of
Answer
  • Hepatitis B
  • AIDS
  • Botulism
  • Measles

Question 122

Question
The main route for infection transmission of Shigellosis Flexneri is
Answer
  • water-borne
  • person-to-person contact
  • blood-borne
  • alimentary

Question 123

Question
The route for infection transmission of hepatitis B is
Answer
  • sexual
  • vertical
  • parenteral
  • all the three are possible

Question 124

Question
When a carriage continues more than 6 months, it is named
Answer
  • acute
  • sub-acute
  • chronic
  • convalescent

Question 125

Question
The vaccine against scarlet fever is
Answer
  • live
  • inactivated
  • toxoid
  • there is not effective vaccine for the moment

Question 126

Question
The sources of infection for measles are
Answer
  • diseased people
  • people - carriers
  • diseased animals
  • all of the three mentioned

Question 127

Question
The sources of infection for enteroviral infections are
Answer
  • diseased animals
  • animals - carriers
  • only diseased people
  • people – diseased and carriers

Question 128

Question
The incubation period for cholera is
Answer
  • 10 days
  • 20 days
  • 5 days
  • 1 day

Question 129

Question
The vaccine against pertussis is
Answer
  • live
  • inactivated
  • toxoid
  • acellular

Question 130

Question
In the environment HIV-virus is
Answer
  • highly resistant
  • non resistant
  • medium resistant
  • resistant for 10 days

Question 131

Question
The dispensary surveillance for hepatitis B is for
Answer
  • 6 months
  • 3 months
  • 2 years
  • 1 month

Question 132

Question
The diseased with varicella are isolated for
Answer
  • 10 days
  • 15 days
  • 21 days
  • to the scab of the rash

Question 133

Question
The water is a factor for transmission of
Answer
  • Q-fever
  • Foot-and-mouth disease
  • Tetanus
  • Hepatitis A

Question 134

Question
The convalescent carriers of salmonellosis from risk groups are under dispensary surveillance for
Answer
  • 1 month
  • 3 months
  • 6 months
  • 1 year

Question 135

Question
Which is the right regimen for autoclave
Answer
  • 121 °С (1 atm) - 30 min
  • 150 °С - 2 atm. - 20 min
  • 145 °С - 2 atm. - 15 min
  • 110 °С - 0.5 atm. - 30 min

Question 136

Question
The vaccine against influenza is
Answer
  • obligatory
  • recommended
  • not at all provided
  • routine

Question 137

Question
The dental consulting room is a risk place for
Answer
  • Viral hepatitis B, C and HIV
  • Rabies
  • Lyme disease
  • Tularemia

Question 138

Question
The surfaces are disinfected with
Answer
  • only rubbing
  • washing
  • rubbing and spraying
  • autoclave

Question 139

Question
Lints and cotton tampons are sterilized with
Answer
  • dry sterilizer
  • autoclave
  • ultraviolet rays
  • hibitan

Question 140

Question
Risk group for influenza are
Answer
  • healthcare workers
  • workers with foods
  • hunters
  • stockmen

Question 141

Question
The vaccine against tetanus is
Answer
  • live attenuated
  • toxoid
  • inactivated
  • recombinant

Question 142

Question
The isolation of a patient with shigellosis from risk group continues to
Answer
  • one
  • two
  • three
  • four (-) results from the microbiological test

Question 143

Question
The vaccine against hepatitis B is
Answer
  • live attenuated
  • inactivated
  • recombinant
  • toxoid

Question 144

Question
The port of entrée for mumps is
Answer
  • intestinal mucosa
  • wounded skin
  • respiratory mucosa
  • the place of tick bite

Question 145

Question
The natural factor is with the greatest importance for the following infections
Answer
  • air-borne
  • intestinal
  • vector-borne
  • of the external envelopes

Question 146

Question
Life-long carriage may be observed after
Answer
  • rubella
  • hepatitis B
  • hepatitis А
  • cholera

Question 147

Question
Primary driving force of the epidemic process is
Answer
  • social factor
  • natural factor
  • source of infection
  • migration of the population

Question 148

Question
The sources of infection for meningococcal infection are
Answer
  • birds
  • only diseased people
  • domestic animals
  • people – diseased and carriers

Question 149

Question
Sources of infection for salmonellosis may be
Answer
  • infected people
  • infected fish
  • infected rodents
  • all of the three

Question 150

Question
The dental instruments are sterilized with
Answer
  • chlorine preparations
  • burning
  • preparations–oxidizers
  • autoclave

Question 151

Question
The sources of infection for cholera are
Answer
  • only diseased people
  • diseased animals
  • animals – carriers
  • people – diseased and carriers

Question 152

Question
Primary driving force(s) of the epidemic process is (are)
Answer
  • people
  • animals
  • mechanism of infection transmission
  • all the three

Question 153

Question
Тhe mechanism of transmission of the infection takes place in
Answer
  • 1 phase
  • 2 phases
  • 3 phases
  • 4 phases

Question 154

Question
Аccording to the immunization calendar of Bulgaria, the hepatitis B vaccine is administered with
Answer
  • 1 dose
  • 2 doses
  • 3 doses
  • 4 doses

Question 155

Question
Nosocomial infections occur in
Answer
  • patients in outpatient care
  • hospitalized patients
  • prophylactic examinations
  • all the three

Question 156

Question
The source of infection for cholera is (are)
Answer
  • infected people
  • contaminated water
  • contaminated food
  • all three

Question 157

Question
Diphtheria may be transmitted by the following mechanism
Answer
  • air-borne mechanism
  • person-to-person contact
  • alimentary
  • all three

Question 158

Question
Source of infection for measles may be
Answer
  • only ill people
  • people – ill and carriers
  • infected air
  • infected people and animals

Question 159

Question
The vertical transmission is not possible for
Answer
  • varicella
  • rubella
  • measles
  • hepatitis B

Question 160

Question
Spermatogenesis can be impaired in
Answer
  • rubella
  • measles
  • mumps
  • rubella and mumps

Question 161

Question
Which of the vaccines is not included in the immunization calendar of Bulgaria
Answer
  • against tuberculosis
  • against hepatitis B
  • against hepatitis A
  • against pertussis

Question 162

Question
Meningococcal infection is transmitted by
Answer
  • blood transfusion
  • air-borne mechanism
  • vertical mechanism
  • all three

Question 163

Question
Hepatitis E virus is with
Answer
  • 1 genotype
  • 2 genotypes
  • 3 genotypes
  • 4 genotypes

Question 164

Question
ECHO- and Coxsckie- viruses may be transmitted by
Answer
  • vertically
  • air-borne mechanism
  • fecal-oral mechanism
  • air-borne and fecal-oral mechanism

Question 165

Question
Source of infection for HIV/AIDS may be
Answer
  • infected people
  • infected monkeys
  • infected bats
  • all three
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