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Epidemiology

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Degree Dentistry Quiz on Epidemiology, created by Gilles Paling on 28/05/2020.
Gilles Paling
Quiz by Gilles Paling, updated more than 1 year ago
Gilles Paling
Created by Gilles Paling over 4 years ago
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Resource summary

Question 1

Question
The main factor for transmission of cholera is:
Answer
  • air
  • water
  • Soil
  • Alimentary products

Question 2

Question
The object of the epidemiology of infectious diseases is:
Answer
  • Infectious process
  • Epidemic process
  • Source of infection
  • Social factor

Question 3

Question
Source of infection for the infectious diseases may be:
Answer
  • People
  • Mosquito
  • Flea
  • All the three above

Question 4

Question
The preparation for disinfection “Hibitan” is from the group:
Answer
  • Alcohols
  • Biguanides
  • Chlorine-containing
  • Oxidisers

Question 5

Question
The leading factor(s) for distribution of nosocomial infections is (are):
Answer
  • Hands of healthcare workers
  • Mosquitoes
  • Air
  • Blood products

Question 6

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

Question 7

Question
The aetiology agent of scarlet fever is:
Answer
  • Virus
  • Rickettsia
  • Bacteria
  • Chlamydia

Question 8

Question
The source of infection for AIDS are:
Answer
  • Birds
  • People
  • Monkeys
  • People and Monkeys

Question 9

Question
What is the mechanism of transmission for salmonellosis:
Answer
  • Air-borne
  • Faecal-oral
  • By insects
  • Of the external envelopes

Question 10

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

Question 11

Question
Source of infection for shigellosis are:
Answer
  • Animals
  • People and animals
  • People
  • Birds

Question 12

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

Question 13

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

Question 14

Question
The aetiology agent of measles is:
Answer
  • Virus
  • Bacteria
  • Chlamydia
  • Spirochaetes

Question 15

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 16

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 17

Question
The artificially acquired active immunity is created after:
Answer
  • Application of a vaccine
  • Application of serum
  • Suffering from some disease
  • Transmited from mother to baby

Question 18

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

Question 19

Question
The epidemiology of the infectious diseases studies:
Answer
  • Viral hepatitis
  • Hypertonia
  • Ulcer
  • Echinococcus

Question 20

Question
Chemical sterilization may be done with:
Answer
  • Chloramine
  • Manusterol
  • Ethylene oxide
  • NaCl

Question 21

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 22

Question
The main route of transmission for S. dysenteriae is:
Answer
  • Person-to-person contact
  • Water-borne
  • Alimentary
  • Blood-borne

Question 23

Question
Anthroponose infectious diseases are these with source of infection:
Answer
  • Animals
  • Rodents
  • People
  • Fleas

Question 24

Question
The rats may be source of infection for:
Answer
  • Viral hepatitis
  • Salmonellosis
  • Cholera
  • Cholera and salmonellosis

Question 25

Question
Risk group for Cremean-Congo hemorrhagic fever are:
Answer
  • Seamen
  • Alimentary workers
  • Stockmen
  • Building workers

Question 26

Question
The preparation for disinfection “perhydrol” (hydrogen peroxide 30%) is from the following chemical group:
Answer
  • Aldehydes
  • Oxidising agents
  • Alchohols
  • Phenols

Question 27

Question
Spores of microorganisms are destroyed by:
Answer
  • Chloramine
  • Manusterol
  • Sterilium
  • Glutaraldehyde

Question 28

Question
Source of infection for hepatitis B are:
Answer
  • Diseased animals
  • Only diseased people
  • Diseased people and carriers
  • Animals and people

Question 29

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 30

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

Question 31

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 32

Question
Specific location of vibrio cholera is:
Answer
  • Mouth
  • Mucosa of small intestines
  • Stomach
  • Mucosa of large intestines

Question 33

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 34

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

Question 35

Question
With disinfection we do destruction of:
Answer
  • Pathogenic microorganisms
  • Spores
  • Vegetative forms and spores
  • Non of the three

Question 36

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 37

Question
The air is main factor for infection transmission of:
Answer
  • Salmonellosis
  • Leptospirosis
  • Rubella
  • Shigellosis

Question 38

Question
The epidemic measures against the contact children to measles, less than 7 years, who have not passed the disease and are not immunised, 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 39

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

Question 40

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

Question 41

Question
The vaccine against poliomyelitis, used in Bulgaria, is:
Answer
  • Inactivated
  • Toxoid
  • Live
  • Recombinant

Question 42

Question
The water is a factor for transmission of:
Answer
  • Q-fever
  • Shigellosis
  • Hepatitis B
  • Ornithosis

Question 43

Question
Salmonella bacteria are excreted from the source of infection with:
Answer
  • Air sputters
  • Blood
  • Faeces and urine
  • Only with faeces

Question 44

Question
Variola is an infection, which is:
Answer
  • Eradicated
  • Eliminated
  • Limited
  • Before eradication

Question 45

Question
The contact children with varicella, less than 7 years, who have not passed the disease, are under surveillance for:
Answer
  • 5 days
  • 10 days
  • 14 days
  • 21 days

Question 46

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

Question 47

Question
The preparation “glutaraldehyde” is used for:
Answer
  • Sanitation of object
  • Sanitation of hands
  • Only for disinfection
  • Disinfection and sterilisation

Question 48

Question
Viral hepatitis A is transmitted by the following mechanism:
Answer
  • Air-borne
  • Of the external envelopes
  • Vector-borne
  • Faecal-oral

Question 49

Question
The immunisation against pertussis in Bulgaria is provided on:
Answer
  • 2 month
  • 3 month
  • 2 and 3 months
  • 2, 3 and 4 months

Question 50

Question
Source of infection may be:
Answer
  • The man
  • Water
  • Food
  • Contaminated hands

Question 51

Question
In autoclave can not be sterilised:
Answer
  • Metal instruments
  • Cotton tampons
  • Textiles
  • Leather materials

Question 52

Question
The vaccine against diphtheria in Bulgaria is:
Answer
  • Live
  • Inactivated
  • Recombinant
  • Toxoid

Question 53

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

Question 54

Question
The alimentary products are factor for transmission of:
Answer
  • Rubella
  • Varicella
  • Tetanus
  • Salmonellosis

Question 55

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 56

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 57

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

Question 58

Question
The preparation for disinfection “Hibiscrub” is used for:
Answer
  • Chirurgical disinfection of the hands
  • Utensils
  • Surfaces
  • Instruments

Question 59

Question
In Bulgaria the vaccine against tuberculosis is:
Answer
  • Recommended
  • Routine
  • There isn't effective vaccine
  • Forbidden for us

Question 60

Question
The source of infection for scarlet fever is:
Answer
  • Sick animals
  • Sick people
  • Animals - Carriers
  • People and animals

Question 61

Question
The vaccine against rubella is applied on:
Answer
  • 6 months
  • 10 months
  • 13 months
  • 24 months

Question 62

Question
Poliomyelitis viruses are:
Answer
  • One type
  • Two types
  • Three types
  • Four types

Question 63

Question
AIDS is not transmitted by one of the following routes:
Answer
  • Blood-borne
  • Sexual
  • Vertical
  • Person-to-person contact

Question 64

Question
The mechanism of transmission for varicella is:
Answer
  • Faecal-oral
  • Air-borne
  • Vector-borne
  • of the external envelopes

Question 65

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

Question 66

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

Question 67

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

Question 68

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

Question 69

Question
The naturally acquired passive immunity is formed:
Answer
  • After some disease
  • After a vaccine
  • After immune-globulin
  • From mother to baby

Question 70

Question
The main route for infection transmission of Shigellosis Flexneri is:
Answer
  • Water-borne
  • Person-to-person contact
  • Blood-borne
  • Alimentary

Question 71

Question
The route for infection transmission of hepatitis B is:
Answer
  • Sexual
  • Vertical
  • Parenteral
  • All the three are possible

Question 72

Question
When a carriage continues more than 6 months, it is named:
Answer
  • Acute
  • Sub-acute
  • Chronic
  • Convalescent

Question 73

Question
The vaccine against scarlet fever is:
Answer
  • Live
  • Inactivated
  • Toxoid
  • There is not effective vaccine for the moment

Question 74

Question
The sources of infection for measles are:
Answer
  • Diseased people
  • People- carriers
  • Diseased animals
  • All of the three mentioned

Question 75

Question
The sources of infection for enteroviral infections are:
Answer
  • Diseased animals
  • Animals- carriers
  • Only diseased people
  • People - diseased and carriers

Question 76

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

Question 77

Question
The vaccine against pertussis is:
Answer
  • Live
  • Inactivated
  • Toxoid
  • Acellular

Question 78

Question
In the environment HIV-virus is:
Answer
  • Highly resistant
  • Non - resistant
  • Medium resistant
  • Resistant for 10 days

Question 79

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

Question 80

Question
Secondary driving force of the epidemic process is:
Answer
  • Social factor
  • Source of infection
  • Factors for infection transmission
  • The susceptible population

Question 81

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

Question 82

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

Question 83

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

Question 84

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 85

Question
The vaccine against influenza is:
Answer
  • Obligatory
  • Recommended
  • Not at all provided
  • Routine

Question 86

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

Question 87

Question
The surfaces are disinfected with:
Answer
  • Only rubbing
  • Washing
  • Rubbing and spraying
  • Autoclave

Question 88

Question
Lints and cotton tampons are sterilized with:
Answer
  • Dry sterilizer
  • Autoclave
  • Ultraviolet rays
  • Stockmen

Question 89

Question
Risk group for influenza are:
Answer
  • Healthcare workers
  • Workers with foods
  • Hunters
  • Stockmen

Question 90

Question
The vaccine against tetanus is:
Answer
  • Live attenuated
  • Toxoid
  • Inactivated
  • Recombinant

Question 91

Question
The isolation of a patient with shigellosis from risk group continues to:
Answer
  • One
  • Two
  • Three
  • Four (-) results from the microbiological test

Question 92

Question
The vaccine against hepatitis B is:
Answer
  • Live attenuated
  • Inactivated
  • Recombinant
  • Toxoid

Question 93

Question
The port of entrée for mumps is:
Answer
  • Intestinal mucosa
  • Wounded skin
  • Respiratory mucosa
  • The place of tick bite

Question 94

Question
The natural factor is with the greatest importance for the following infections:
Answer
  • Air-borne
  • Intestinal
  • Vector-borne
  • Of the external envelopes

Question 95

Question
Life-long carriage may be observed after:
Answer
  • Rubella
  • Hepatitis B
  • Hepatitis A
  • Cholera

Question 96

Question
Primary driving force of the epidemic process is:
Answer
  • Social factor
  • Natural factor
  • Source of infection
  • Migration of the population

Question 97

Question
The sources of infection for meningococcal infection are:
Answer
  • Birds
  • Only diseased people
  • Domestic animals
  • People - diseased and carriers

Question 98

Question
Sources of infection for salmonellosis may be:
Answer
  • Infected people
  • Infected fish
  • Infected rodents
  • All of the three

Question 99

Question
The dental instruments are sterilised with:
Answer
  • Chlorine preparations
  • Burning
  • Preparations-oxidisers
  • Autoclave

Question 100

Question
The sources of infection for cholera are:
Answer
  • Only diseased people
  • Diseased animals
  • Animals- carriers
  • People - diseased and carriers

Question 101

Question
The object of the epidemiology is (are):
Answer
  • The people
  • Animals
  • The epidemic process
  • People and animals

Question 102

Question
Primary driving force(s) of the epidemic process is (are):
Answer
  • People
  • Animals
  • Mechanism of infection transmission
  • All the three

Question 103

Question
The source of infection for infectious diseases is (are):
Answer
  • Food
  • Water
  • Animals
  • All the three

Question 104

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

Question 105

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

Question 106

Question
Nosocomial infections occur in:
Answer
  • Patients in outpatient care
  • Hospitalised patients
  • Prophylactic examination
  • All three are included

Question 107

Question
Which of the measures is not included in the standard measures for prevention of nosocomial infections:
Answer
  • Hand disinfection
  • Use of personal protective equipment
  • Hospital waste management
  • All three are included

Question 108

Question
Who (what) can be the source of salmonellosis infection:
Answer
  • Infected animals
  • Ill people
  • People - carriers
  • All three

Question 109

Question
Who (what) may be the source of shigellosis infection:
Answer
  • Infected people
  • Sick animals
  • Animals - carriers of the infection
  • All three

Question 110

Question
The source of infection for cholera is (are):
Answer
  • Infected people
  • Contaminated water
  • Contaminated food
  • All three

Question 111

Question
Diphtheria may be transmitted by the following mechanism:
Answer
  • Air-borne mechanism
  • Person-to-person contact
  • Alimentary
  • All three

Question 112

Question
Scarlet fever may be transmitted by:
Answer
  • Blood transfusion
  • Air-borne mechanism
  • Tick bite
  • All three

Question 113

Question
Source of infection for measles may be:
Answer
  • Only ill people
  • People- ill and carriers
  • Infected air
  • Infected people and animals

Question 114

Question
The vertical transmission is not possible for:
Answer
  • Varicella
  • Rubella
  • Measles
  • Hepatitis B

Question 115

Question
Spermatogenesis can be impaired in:
Answer
  • Rubella
  • Measles
  • Mumps
  • Rubella and mumps

Question 116

Question
Which of the vaccines is not included in the immunisation calendar of Bulgaria:
Answer
  • Against tuberculosis
  • Against hepatitis B
  • Against hepatitis A
  • Against pertussis

Question 117

Question
Meningococcal infection is transmitted by:
Answer
  • Blood transfusion
  • Air-borne mechanism
  • Vertical mechanism
  • All three

Question 118

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

Question 119

Question
ECHO- and Coxsckie- viruses may be transmitted by:
Answer
  • Vertically
  • Air-borne mechanism
  • Faecal-oral mechanism
  • Air-borne and faecal-oral mechanism

Question 120

Question
Source of infection for HIV/AIDS may be:
Answer
  • Infected people
  • Infected monkeys
  • Infected bats
  • All three
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