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)
 
Question 12
Question
The highest efficiency of transmission of AIDS is seen in 
 
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 
 
Question 15
Question
The term bacteriostatic means 
 
Question 16
Question
Immunocompromised patients are targeted by 
 
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 
 
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 
 
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 
 
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  
 
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  
 
Question 53
Question
Immunization against Rubella is carried out on  
 
Question 54
Question
The most common form of meningococcal infection is  
 
Question 55
Question
Entrance door with Scarlet fever is 
 
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]
 
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)
 
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
 
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
 
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
 
Question 78
Question
Secondary driving force of the epidemic process is
 
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
 
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
 
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
 
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
 
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
 
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
 
Question 100
Question
As nosocomial infection may arise
 
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
 
Question 105
Question
 Viral hepatitis A is transmitted by the following mechanism
 
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
 
Question 112
Question
 The preparation for disinfection “Hibiscrub” is used for
 
Question 113
Question
In Bulgaria the vaccine against tuberculosis is
 
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
 
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
 
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
 
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
 
Question 126
Question
 The sources of infection for measles are
 
Question 127
Question
 The sources of infection for enteroviral infections are
 
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
 
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
 
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
 
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
 
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
 
Question 148
Question
The sources of infection for meningococcal infection are
 
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
 
Question 152
Question
Primary driving force(s) of the epidemic process is (are)
 
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
 
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
 
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
 
Question 165
Question
Source of infection for HIV/AIDS may be
 
Answer
- 
infected people
 
- 
infected monkeys
 
- 
infected bats
 
- 
all three