The dispensary surveillance for hepatitis A is
1 month
3 months
12 months
24 months
The main factor for transmission of cholera is
air
soil
water
alimentary products
The object of epidemiology of infectious diseases is
infectious process
source of infection
social factor
epidemic process
Source of infection for the infectious diseases may be
People
Mosquito
Flea
All the three above
The preparation for disinfection "Hibitan" is from the group
alcohols
biguanides
chlorine-containing
oxydizers
The leading factor(s) for distribution of nosocomial infections is (are)
the hands of healthcare workers
mosquitoes
the air
blood products
The re-immunization against measles in Bulgaria is on
7 years
11 years
12 years
17 years
The etiology agent of scarlet fever is
virus
bacteria
rickettsia
chlamidia
The source of infection for AIDS are
birds
people
monkeys
people and monkeys
What is the mechanism of transmission for salmonellosis
air-borne
fecal-oral
by insects
of the external envelopes
The epidemiology of the infectious diseases studies
viral hepatitis
hupertonia
ulcer
echinococcus
Chemical sterilization may be done with
chloramine
manusterol
ethylene oxyde
natrium hypochloridi
Source of infection for shigellosis are
animals
people and animals
The contacts of a diseased with hepatitis A are under medical surveillance for
7 days
20 days
15 days
45 days
The re-immunization against tuberculosis is on
5 years
15 years
20 years
The etiology agent of measles is
spirocheta
The source of infection for meningicoccal infection is
the ill man only
sick animals only
the man - as sick or carrier
sick people and animals
The re-immunizations against poliomyelitis are on
13 months, 24 months, 11 years
16 months and 6 years
24 months, 7 years, 11 years
24 months, 7 years, 12 years
The artificially acquired active immunity is created after
application of a vaccine
application of serum
suffering from some disease
transmitted from mother to baby
Secondary moving force of the epidemic process is
the etiology agent
the susceptibility of the population
the social factor
the mechanism of transmission
It is recommended the immunization against influenza to be done
2 times in the year
every year
1 time for five years
1 time for three years
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
5 days
9 days
14 days
Port of entrance for poliomyelitis is
only mucosa of nasopharynx
only intestinal mucosa
naso-pharyngeal and intestinal mucosa
intestinal mucosa and skin
The main route of transmission for S. dysenteriae is
person-to-person contact
water-borne
alimentary
blood-borne
Anthroponose infectious diseases are these with source of infection
rodents
fleas
The rats may be source of infection for
salmonellosis
cholera
cholera and salmonellosis
Risk group for Cremean-Congo hemorrhagic fever are
seamen
alimentary workers
stockmen
building workers
The preparation for disinfection "perhydrol" (hydrogen peroxide 30%) is from the following chemical group
aldehydes
oxidizing agents
phenols
Spores of microorganisms are destroyed by
sterilium
glutaraldehyde
Source of infection for hepatitis B are
diseased animals
only diseased people
diseased people and carriers
animals and people
Protective titer of antibodies against rubella (reaction inhibition d'hemagglutination) is
1:4
1:8
1:16
1:32
As nosocomial infection may arise
hemorrhagic fever with renal syndrome
Cremean-Congo hemorrhagic fever
Botulism
rabies
After wounding it is applied
0,5 ml tetanus toxoid
1 ml tetanus toxoid
0,1 ml tetanus toxoid
2 ml tetanus toxoid
Specific location of vibrio cholera is
mouth
mucosa of small intestine
mucosa of large intestine
stomach
Persons from risk groups, who are convalescent carriers after salmonellosis, are allowed to work after
7 days and 2 (-) results
15 days and 2 (-) results
15 days and 3 (-) results
20 days and 3 (-) results
Re-immunization against pertussis is done on
10 month
13 month
6 years
With disinfection we do destruction of
pathogenic microorganisms
vegetative forms and spores
spores
none of the above
The definition for epidemic process is
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
The epidemic measures against the contact children to measles, less than 7 years, who have not passed the disease and are not immunized, are
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
The air is main factor for infection transmission of
leptospirosis
rubella
shigellosis
The immunization against pertussis is provided on
2 month
3 month
2 and 3 month
2, 3 and 4 month
Source of infection may be
the man
food
contaminated hands
The vaccine against poliomyelitis is
inactivated
toxoid
live
recombinant
The water is a factor for transmission of
Q-fever
hepatitis B
ornithosis
Salmonella bacteria are excreted from the source of infection with
air sputters
blood
feces and urine
only with feces
Variola is an infection, which is
eradicated
eliminated
limited
before eradication
The contact children with varicella, less than 7 years, who have not passed the disease, are under surveillance for
10 days
21 days
Which of the following regiments is the right for the dry sterilizer
120C - 2 h
160C - 2 h
190C - 30 min
150C - 1 h
The preparation "glutaraldehyde" is used for
sanitation of objects
sanitation of hands
only for disinfection
disinfection and sterilization
Viral hepatitis A is transmitted by the following mechanism
vector-borne
In Bulgaria the vaccine against tuberculosis is
recommended
routine
there isn't effective vaccine
forbidden for use
The source of infection for scarlet fever is
sick animals
sick people
animals - carriers
In autoclave can not be sterilized
metal instruments
cotton tampons
textiles
leather materials
The vaccine against diphtheria in Bulgaria is
The alimentary products are factor for transmission of
tetanus
varicella
The diseased with diphtheria are discharged after the following negative results from the microbiological test for carriage
1 (-) test
2 (-) tests
3 (-) tests
4 (-) tests
Influenza viruses are divided on the following serotypes
A and B
A, B and C
A, B, C and D
A, B, C, D and E
Secondary moving force of the epidemic process are
the etiology agent of the disease
the natural factor
the source of infection
The preparation for disinfection "Hibiscrub" is used for
chirurgical disinfection of the hands
utensils
surfaces
instruments
The main route for infection transmission of Shigellosis Flexneri is
person-to--person contact
The vaccine against rubella is applied on
6 months
13 months
10 months
Poliomyelitis viruses are
one type
two types
three types
four types
AIDS is not transmitted by one of the following routes
sexual
vertical
The mechanism of transmission for varicella is
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
surveillance for 7 days
surveillance for 17 days
immunization and surveillance for 17 days
immune-globulin and surveillance for 10 days
The ususal concentration of chlorine is
3% water solution
10% water solution
1% water solution
5% water solution
The soil is a factor for transmission of
AIDS
The alimentary products are factors for transmission of
botulism
measles
The naturally acquired passive immunity is formed
after some disease
after a vaccine
after immune globulin
from mother to baby
factors for infection transmission
the susceptible population
The route for infection transmission of hepatitis B is
parenteral
all the three are possible
When a carriage continues more than 6 months, it is named
acute
chronic
sub-acute
convalescent
The vaccine against scarlet fever is
there is not effective vaccine for the moment
The sources of infection for measles are
diseased people
people - carriers
all of the three mentioned
The sources of infection for enteroviral infections are
people - diseased and carriers
The incubation period for cholera is
1 day
The vaccine against pertussis is
acellular
In the environment HIV-virus is
highly resistant
non resistant
medium resistant
resistant for 10 days
The dispensary surveillance for hepatitis B is for
2 years
Risk group for influenze are
healthcare workers
workers with food
hunters
The vaccine against tetanus is
live attenuated
The disease with varicella are isolated for
to the scab of the rash
plague
hepatitis A
The convalescent carriers of salmonellosis from risk groups are under dispensary surveillance for
1 year
Which is the right regimen for autoclave
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
The vaccine against influenza is
obligatory
not at all provided
The dental consulting room is a risk place for
viral hepatitis B, C and HIV
Lyme disease
tularemia
The surfaces are disinfected with
only rubbing
washing
rubbing and spraying
autoclave
Lints and cotton tampons are sterilized with
dry sterilizer
ultraviolet rays
hibitan
The sources of infection for cholera are
The isolation of a patient with shigellosis from risk group continues to
1
2
3
4 (-) results from the microbiological test
The vaccine against hepatitis B is
The port of entree for mumps is
intestinal mucosa
wounded skin
respiratory mucosa
the place of tick bite
The natural factor is with the greatest importance for the following infections
intestinal
Life-long carriage may be observed after
Primary moving force of the epidemic process is
natural factor
migration of the population
The sources of infection for meningococcal infection are
domestic animals
Sources of infection for salmonellosis may be
infected people
infected rodents
infected fish
all of the 3
The dental instruments are sterilized with
chlorine preparations
burning
preparations - oxidizers
The object of the epidemiology is (are)
the people
the epidemic process
a and b
Primary driving force(s) of the epidemic process is (are)
mechanism of infection transmission
a, b and c
the source of infection for infectious diseases is (are)
the mechanism of transmission of the infection takes place in
1 phase
2 phases
3 phases
4 phases
According to the immunization calendar of Bulgaria, the hepatitis B vaccine is administered with
1 dose
2 doses
3 doses
4 doses
Nosocomial infections occur in
patients in outpatient care
hospitalized patients
prophylactic examinations
Which of the measures is not included in the standard measures for prevention of nosocomial infections
hand disinfection
use of personal protective equipment
hospital waste management
all 3 are included
Who (what) can be the source of salmonellosis infection
infected animals
ill people
all 3
Who (what) may be the source of shigellosis infection
animals - carriers of the infection
the source of infection for cholera is (are)
contaminated water
contaminated food
Diphtheria may be transmitted by the following mechanism
air-borne mechanism
person to person contact
Scarlet fever may be transmitted by
blood transfusion
tick bite
Source of infection for measles may be
only ill people
people - ill and carriers
infected air
infected people and animals
The vertical transmission is not possible for
Spermatogenesis can be impaired in
mumps
a and c
Which of the vaccines is not included in the immunization calendar of Bulgaria
against tuberculosis
against hepatitis B
against hepatitis A
against pertussis
Meningococcal infection is transmitted by
vertical mechanism
Hepatitis E virus is with
1 genotype
2 genotypes
3 genotypes
4 genotypes
ECHO and Coxsckie viruses may be transmitted by
vertically
fecal-oral mechanism
b and c