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EPI MCQS

Question 1 of 119

1

The dispensary surveillance for hepatitis A is

Select one of the following:

  • 1 month

  • 3 months

  • 12 months

  • 24 months

Explanation

Question 2 of 119

1

The main factor for transmission of cholera is

Select one of the following:

  • air

  • soil

  • water

  • alimentary products

Explanation

Question 3 of 119

1

The object of epidemiology of infectious diseases is

Select one of the following:

  • infectious process

  • source of infection

  • social factor

  • epidemic process

Explanation

Question 4 of 119

1

Source of infection for the infectious diseases may be

Select one of the following:

  • People

  • Mosquito

  • Flea

  • All the three above

Explanation

Question 5 of 119

1

The preparation for disinfection "Hibitan" is from the group

Select one of the following:

  • alcohols

  • biguanides

  • chlorine-containing

  • oxydizers

Explanation

Question 6 of 119

1

The leading factor(s) for distribution of nosocomial infections is (are)

Select one of the following:

  • the hands of healthcare workers

  • mosquitoes

  • the air

  • blood products

Explanation

Question 7 of 119

1

The re-immunization against measles in Bulgaria is on

Select one of the following:

  • 7 years

  • 11 years

  • 12 years

  • 17 years

Explanation

Question 8 of 119

1

The etiology agent of scarlet fever is

Select one of the following:

  • virus

  • bacteria

  • rickettsia

  • chlamidia

Explanation

Question 9 of 119

1

The source of infection for AIDS are

Select one of the following:

  • birds

  • people

  • monkeys

  • people and monkeys

Explanation

Question 10 of 119

1

What is the mechanism of transmission for salmonellosis

Select one of the following:

  • air-borne

  • fecal-oral

  • by insects

  • of the external envelopes

Explanation

Question 11 of 119

1

The epidemiology of the infectious diseases studies

Select one of the following:

  • viral hepatitis

  • hupertonia

  • ulcer

  • echinococcus

Explanation

Question 12 of 119

1

Chemical sterilization may be done with

Select one of the following:

  • chloramine

  • manusterol

  • ethylene oxyde

  • natrium hypochloridi

Explanation

Question 13 of 119

1

Source of infection for shigellosis are

Select one of the following:

  • animals

  • people and animals

  • people

  • birds

Explanation

Question 14 of 119

1

The contacts of a diseased with hepatitis A are under medical surveillance for

Select one of the following:

  • 7 days

  • 20 days

  • 15 days

  • 45 days

Explanation

Question 15 of 119

1

The re-immunization against tuberculosis is on

Select one of the following:

  • 5 years

  • 7 years

  • 15 years

  • 20 years

Explanation

Question 16 of 119

1

The etiology agent of measles is

Select one of the following:

  • virus

  • bacteria

  • chlamidia

  • spirocheta

Explanation

Question 17 of 119

1

The source of infection for meningicoccal infection is

Select one of the following:

  • the ill man only

  • sick animals only

  • the man - as sick or carrier

  • sick people and animals

Explanation

Question 18 of 119

1

The re-immunizations against poliomyelitis are on

Select one of the following:

  • 13 months, 24 months, 11 years

  • 16 months and 6 years

  • 24 months, 7 years, 11 years

  • 24 months, 7 years, 12 years

Explanation

Question 19 of 119

1

The artificially acquired active immunity is created after

Select one of the following:

  • application of a vaccine

  • application of serum

  • suffering from some disease

  • transmitted from mother to baby

Explanation

Question 20 of 119

1

Secondary moving force of the epidemic process is

Select one of the following:

  • the etiology agent

  • the susceptibility of the population

  • the social factor

  • the mechanism of transmission

Explanation

Question 21 of 119

1

It is recommended the immunization against influenza to be done

Select one of the following:

  • 2 times in the year

  • every year

  • 1 time for five years

  • 1 time for three years

Explanation

Question 22 of 119

1

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

Select one of the following:

  • 5 days

  • 9 days

  • 14 days

  • 20 days

Explanation

Question 23 of 119

1

Port of entrance for poliomyelitis is

Select one of the following:

  • only mucosa of nasopharynx

  • only intestinal mucosa

  • naso-pharyngeal and intestinal mucosa

  • intestinal mucosa and skin

Explanation

Question 24 of 119

1

The main route of transmission for S. dysenteriae is

Select one of the following:

  • person-to-person contact

  • water-borne

  • alimentary

  • blood-borne

Explanation

Question 25 of 119

1

Anthroponose infectious diseases are these with source of infection

Select one of the following:

  • animals

  • rodents

  • people

  • fleas

Explanation

Question 26 of 119

1

The rats may be source of infection for

Select one of the following:

  • viral hepatitis

  • salmonellosis

  • cholera

  • cholera and salmonellosis

Explanation

Question 27 of 119

1

Risk group for Cremean-Congo hemorrhagic fever are

Select one of the following:

  • seamen

  • alimentary workers

  • stockmen

  • building workers

Explanation

Question 28 of 119

1

The preparation for disinfection "perhydrol" (hydrogen peroxide 30%) is from the following chemical group

Select one of the following:

  • aldehydes

  • oxidizing agents

  • alcohols

  • phenols

Explanation

Question 29 of 119

1

Spores of microorganisms are destroyed by

Select one of the following:

  • chloramine

  • manusterol

  • sterilium

  • glutaraldehyde

Explanation

Question 30 of 119

1

Source of infection for hepatitis B are

Select one of the following:

  • diseased animals

  • only diseased people

  • diseased people and carriers

  • animals and people

Explanation

Question 31 of 119

1

Protective titer of antibodies against rubella (reaction inhibition d'hemagglutination) is

Select one of the following:

  • 1:4

  • 1:8

  • 1:16

  • 1:32

Explanation

Question 32 of 119

1

As nosocomial infection may arise

Select one of the following:

  • hemorrhagic fever with renal syndrome

  • Cremean-Congo hemorrhagic fever

  • Botulism

  • rabies

Explanation

Question 33 of 119

1

After wounding it is applied

Select one of the following:

  • 0,5 ml tetanus toxoid

  • 1 ml tetanus toxoid

  • 0,1 ml tetanus toxoid

  • 2 ml tetanus toxoid

Explanation

Question 34 of 119

1

Specific location of vibrio cholera is

Select one of the following:

  • mouth

  • mucosa of small intestine

  • mucosa of large intestine

  • stomach

Explanation

Question 35 of 119

1

Persons from risk groups, who are convalescent carriers after salmonellosis, are allowed to work after

Select one of the following:

  • 7 days and 2 (-) results

  • 15 days and 2 (-) results

  • 15 days and 3 (-) results

  • 20 days and 3 (-) results

Explanation

Question 36 of 119

1

Re-immunization against pertussis is done on

Select one of the following:

  • 10 month

  • 13 month

  • 6 years

  • 11 years

Explanation

Question 37 of 119

1

With disinfection we do destruction of

Select one of the following:

  • pathogenic microorganisms

  • vegetative forms and spores

  • spores

  • none of the above

Explanation

Question 38 of 119

1

The definition for epidemic process is

Select one of the following:

  • 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

Explanation

Question 39 of 119

1

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

Select one of the following:

  • 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

Explanation

Question 40 of 119

1

The air is main factor for infection transmission of

Select one of the following:

  • salmonellosis

  • leptospirosis

  • rubella

  • shigellosis

Explanation

Question 41 of 119

1

The immunization against pertussis is provided on

Select one of the following:

  • 2 month

  • 3 month

  • 2 and 3 month

  • 2, 3 and 4 month

Explanation

Question 42 of 119

1

Source of infection may be

Select one of the following:

  • the man

  • water

  • food

  • contaminated hands

Explanation

Question 43 of 119

1

The vaccine against poliomyelitis is

Select one of the following:

  • inactivated

  • toxoid

  • live

  • recombinant

Explanation

Question 44 of 119

1

The water is a factor for transmission of

Select one of the following:

  • Q-fever

  • shigellosis

  • hepatitis B

  • ornithosis

Explanation

Question 45 of 119

1

Salmonella bacteria are excreted from the source of infection with

Select one of the following:

  • air sputters

  • blood

  • feces and urine

  • only with feces

Explanation

Question 46 of 119

1

Variola is an infection, which is

Select one of the following:

  • eradicated

  • eliminated

  • limited

  • before eradication

Explanation

Question 47 of 119

1

The contact children with varicella, less than 7 years, who have not passed the disease, are under surveillance for

Select one of the following:

  • 5 days

  • 10 days

  • 14 days

  • 21 days

Explanation

Question 48 of 119

1

Which of the following regiments is the right for the dry sterilizer

Select one of the following:

  • 120C - 2 h

  • 160C - 2 h

  • 190C - 30 min

  • 150C - 1 h

Explanation

Question 49 of 119

1

The preparation "glutaraldehyde" is used for

Select one of the following:

  • sanitation of objects

  • sanitation of hands

  • only for disinfection

  • disinfection and sterilization

Explanation

Question 50 of 119

1

Viral hepatitis A is transmitted by the following mechanism

Select one of the following:

  • air-borne

  • of the external envelopes

  • vector-borne

  • fecal-oral

Explanation

Question 51 of 119

1

In Bulgaria the vaccine against tuberculosis is

Select one of the following:

  • recommended

  • routine

  • there isn't effective vaccine

  • forbidden for use

Explanation

Question 52 of 119

1

The source of infection for scarlet fever is

Select one of the following:

  • sick animals

  • sick people

  • animals - carriers

  • people and animals

Explanation

Question 53 of 119

1

In autoclave can not be sterilized

Select one of the following:

  • metal instruments

  • cotton tampons

  • textiles

  • leather materials

Explanation

Question 54 of 119

1

The vaccine against diphtheria in Bulgaria is

Select one of the following:

  • live

  • recombinant

  • inactivated

  • toxoid

Explanation

Question 55 of 119

1

The dispensary surveillance for hepatitis A is

Select one of the following:

  • 1 month

  • 3 months

  • 24 months

  • 12 months

Explanation

Question 56 of 119

1

The alimentary products are factor for transmission of

Select one of the following:

  • rubella

  • tetanus

  • varicella

  • salmonellosis

Explanation

Question 57 of 119

1

The diseased with diphtheria are discharged after the following negative results from the microbiological test for carriage

Select one of the following:

  • 1 (-) test

  • 2 (-) tests

  • 3 (-) tests

  • 4 (-) tests

Explanation

Question 58 of 119

1

Influenza viruses are divided on the following serotypes

Select one of the following:

  • A and B

  • A, B and C

  • A, B, C and D

  • A, B, C, D and E

Explanation

Question 59 of 119

1

Secondary moving force of the epidemic process are

Select one of the following:

  • the etiology agent of the disease

  • the natural factor

  • the susceptibility of the population

  • the source of infection

Explanation

Question 60 of 119

1

The preparation for disinfection "Hibiscrub" is used for

Select one of the following:

  • chirurgical disinfection of the hands

  • utensils

  • surfaces

  • instruments

Explanation

Question 61 of 119

1

The main route for infection transmission of Shigellosis Flexneri is

Select one of the following:

  • water-borne

  • person-to--person contact

  • blood-borne

  • alimentary

Explanation

Question 62 of 119

1

The vaccine against rubella is applied on

Select one of the following:

  • 6 months

  • 13 months

  • 10 months

  • 24 months

Explanation

Question 63 of 119

1

Poliomyelitis viruses are

Select one of the following:

  • one type

  • two types

  • three types

  • four types

Explanation

Question 64 of 119

1

AIDS is not transmitted by one of the following routes

Select one of the following:

  • blood-borne

  • sexual

  • vertical

  • person-to-person contact

Explanation

Question 65 of 119

1

The mechanism of transmission for varicella is

Select one of the following:

  • fecal-oral

  • air-borne

  • vector-borne

  • of the external envelopes

Explanation

Question 66 of 119

1

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

Select one of the following:

  • surveillance for 7 days

  • surveillance for 17 days

  • immunization and surveillance for 17 days

  • immune-globulin and surveillance for 10 days

Explanation

Question 67 of 119

1

The ususal concentration of chlorine is

Select one of the following:

  • 3% water solution

  • 10% water solution

  • 1% water solution

  • 5% water solution

Explanation

Question 68 of 119

1

The soil is a factor for transmission of

Select one of the following:

  • AIDS

  • tetanus

  • rubella

  • salmonellosis

Explanation

Question 69 of 119

1

The alimentary products are factors for transmission of

Select one of the following:

  • hepatitis B

  • AIDS

  • botulism

  • measles

Explanation

Question 70 of 119

1

The naturally acquired passive immunity is formed

Select one of the following:

  • after some disease

  • after a vaccine

  • after immune globulin

  • from mother to baby

Explanation

Question 71 of 119

1

Secondary moving force of the epidemic process is

Select one of the following:

  • social factor

  • source of infection

  • factors for infection transmission

  • the susceptible population

Explanation

Question 72 of 119

1

The route for infection transmission of hepatitis B is

Select one of the following:

  • sexual

  • vertical

  • parenteral

  • all the three are possible

Explanation

Question 73 of 119

1

When a carriage continues more than 6 months, it is named

Select one of the following:

  • acute

  • chronic

  • sub-acute

  • convalescent

Explanation

Question 74 of 119

1

The vaccine against scarlet fever is

Select one of the following:

  • live

  • inactivated

  • toxoid

  • there is not effective vaccine for the moment

Explanation

Question 75 of 119

1

The sources of infection for measles are

Select one of the following:

  • diseased people

  • diseased animals

  • people - carriers

  • all of the three mentioned

Explanation

Question 76 of 119

1

The sources of infection for enteroviral infections are

Select one of the following:

  • diseased animals

  • animals - carriers

  • only diseased people

  • people - diseased and carriers

Explanation

Question 77 of 119

1

The incubation period for cholera is

Select one of the following:

  • 10 days

  • 20 days

  • 5 days

  • 1 day

Explanation

Question 78 of 119

1

The vaccine against pertussis is

Select one of the following:

  • live

  • inactivated

  • toxoid

  • acellular

Explanation

Question 79 of 119

1

In the environment HIV-virus is

Select one of the following:

  • highly resistant

  • non resistant

  • medium resistant

  • resistant for 10 days

Explanation

Question 80 of 119

1

The dispensary surveillance for hepatitis B is for

Select one of the following:

  • 6 months

  • 3 months

  • 2 years

  • 1 month

Explanation

Question 81 of 119

1

Risk group for influenze are

Select one of the following:

  • healthcare workers

  • workers with food

  • hunters

  • stockmen

Explanation

Question 82 of 119

1

The vaccine against tetanus is

Select one of the following:

  • live attenuated

  • toxoid

  • inactivated

  • recombinant

Explanation

Question 83 of 119

1

The disease with varicella are isolated for

Select one of the following:

  • 10 days

  • 15 days

  • 21 days

  • to the scab of the rash

Explanation

Question 84 of 119

1

The water is a factor for transmission of

Select one of the following:

  • Q-fever

  • plague

  • tetanus

  • hepatitis A

Explanation

Question 85 of 119

1

The convalescent carriers of salmonellosis from risk groups are under dispensary surveillance for

Select one of the following:

  • 1 month

  • 3 months

  • 6 months

  • 1 year

Explanation

Question 86 of 119

1

Which is the right regimen for autoclave

Select one of the following:

  • 121 C (1 atm) - 30 min

  • 150 C - 2 atm - 20 min

  • 145 C - 2 atm - 15 min

  • 110 C - 0.5 atm - 30 min

Explanation

Question 87 of 119

1

The vaccine against influenza is

Select one of the following:

  • obligatory

  • recommended

  • not at all provided

  • routine

Explanation

Question 88 of 119

1

The dental consulting room is a risk place for

Select one of the following:

  • viral hepatitis B, C and HIV

  • rabies

  • Lyme disease

  • tularemia

Explanation

Question 89 of 119

1

The surfaces are disinfected with

Select one of the following:

  • only rubbing

  • washing

  • rubbing and spraying

  • autoclave

Explanation

Question 90 of 119

1

Lints and cotton tampons are sterilized with

Select one of the following:

  • dry sterilizer

  • autoclave

  • ultraviolet rays

  • hibitan

Explanation

Question 91 of 119

1

The sources of infection for cholera are

Select one of the following:

  • only diseased people

  • diseased animals

  • animals - carriers

  • people - diseased and carriers

Explanation

Question 92 of 119

1

The isolation of a patient with shigellosis from risk group continues to

Select one of the following:

  • 1

  • 2

  • 3

  • 4 (-) results from the microbiological test

Explanation

Question 93 of 119

1

The vaccine against hepatitis B is

Select one of the following:

  • live attenuated

  • inactivated

  • recombinant

  • toxoid

Explanation

Question 94 of 119

1

The port of entree for mumps is

Select one of the following:

  • intestinal mucosa

  • wounded skin

  • respiratory mucosa

  • the place of tick bite

Explanation

Question 95 of 119

1

The natural factor is with the greatest importance for the following infections

Select one of the following:

  • air-borne

  • intestinal

  • vector-borne

  • of the external envelopes

Explanation

Question 96 of 119

1

Life-long carriage may be observed after

Select one of the following:

  • rubella

  • hepatitis B

  • hepatitis A

  • cholera

Explanation

Question 97 of 119

1

Primary moving force of the epidemic process is

Select one of the following:

  • social factor

  • natural factor

  • source of infection

  • migration of the population

Explanation

Question 98 of 119

1

The sources of infection for meningococcal infection are

Select one of the following:

  • birds

  • only diseased people

  • domestic animals

  • people - diseased and carriers

Explanation

Question 99 of 119

1

Sources of infection for salmonellosis may be

Select one of the following:

  • infected people

  • infected rodents

  • infected fish

  • all of the 3

Explanation

Question 100 of 119

1

The dental instruments are sterilized with

Select one of the following:

  • chlorine preparations

  • burning

  • preparations - oxidizers

  • autoclave

Explanation

Question 101 of 119

1

The object of the epidemiology is (are)

Select one of the following:

  • the people

  • animals

  • the epidemic process

  • a and b

Explanation

Question 102 of 119

1

Primary driving force(s) of the epidemic process is (are)

Select one of the following:

  • people

  • animals

  • mechanism of infection transmission

  • a, b and c

Explanation

Question 103 of 119

1

the source of infection for infectious diseases is (are)

Select one of the following:

  • food

  • animals

  • water

  • a, b and c

Explanation

Question 104 of 119

1

the mechanism of transmission of the infection takes place in

Select one of the following:

  • 1 phase

  • 2 phases

  • 3 phases

  • 4 phases

Explanation

Question 105 of 119

1

According to the immunization calendar of Bulgaria, the hepatitis B vaccine is administered with

Select one of the following:

  • 1 dose

  • 2 doses

  • 3 doses

  • 4 doses

Explanation

Question 106 of 119

1

Nosocomial infections occur in

Select one of the following:

  • patients in outpatient care

  • hospitalized patients

  • prophylactic examinations

  • a, b and c

Explanation

Question 107 of 119

1

Which of the measures is not included in the standard measures for prevention of nosocomial infections

Select one of the following:

  • hand disinfection

  • use of personal protective equipment

  • hospital waste management

  • all 3 are included

Explanation

Question 108 of 119

1

Who (what) can be the source of salmonellosis infection

Select one of the following:

  • infected animals

  • ill people

  • people - carriers

  • all 3

Explanation

Question 109 of 119

1

Who (what) may be the source of shigellosis infection

Select one of the following:

  • infected people

  • sick animals

  • animals - carriers of the infection

  • all 3

Explanation

Question 110 of 119

1

the source of infection for cholera is (are)

Select one of the following:

  • infected people

  • contaminated water

  • contaminated food

  • all 3

Explanation

Question 111 of 119

1

Diphtheria may be transmitted by the following mechanism

Select one of the following:

  • air-borne mechanism

  • person to person contact

  • alimentary

  • all 3

Explanation

Question 112 of 119

1

Scarlet fever may be transmitted by

Select one of the following:

  • blood transfusion

  • air-borne mechanism

  • tick bite

  • all 3

Explanation

Question 113 of 119

1

Source of infection for measles may be

Select one of the following:

  • only ill people

  • people - ill and carriers

  • infected air

  • infected people and animals

Explanation

Question 114 of 119

1

The vertical transmission is not possible for

Select one of the following:

  • varicella

  • rubella

  • measles

  • hepatitis B

Explanation

Question 115 of 119

1

Spermatogenesis can be impaired in

Select one of the following:

  • rubella

  • measles

  • mumps

  • a and c

Explanation

Question 116 of 119

1

Which of the vaccines is not included in the immunization calendar of Bulgaria

Select one of the following:

  • against tuberculosis

  • against hepatitis B

  • against hepatitis A

  • against pertussis

Explanation

Question 117 of 119

1

Meningococcal infection is transmitted by

Select one of the following:

  • blood transfusion

  • air-borne mechanism

  • vertical mechanism

  • all 3

Explanation

Question 118 of 119

1

Hepatitis E virus is with

Select one of the following:

  • 1 genotype

  • 2 genotypes

  • 3 genotypes

  • 4 genotypes

Explanation

Question 119 of 119

1

ECHO and Coxsckie viruses may be transmitted by

Select one of the following:

  • vertically

  • air-borne mechanism

  • fecal-oral mechanism

  • b and c

Explanation

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