TEDA/EEDA Exam 1: Questions & Answers
Which option below places possible public responses to risk from the most
frequent reaction to the least frequent reaction?
Fear, Denial, Panic, Acceptance
Denial, Fear, Panic, Acceptance
Acceptance, Fear, Denial, Panic
Panic, Denial, Fear, Acceptance
Denial, Acceptance, Panic, Fear
(Ans- Acceptance, Fear, Denial, Panic
True/False: the risk analysis paradigm assumes that in many cases there is a zero
risk of harm.
(Ans- False
Which of these types of diseases would be most difficult to prevent entering and
infecting animals in the U.S? All pose a risk but which would pose the highest risk?
A disease of various species that has wild birds as a reservoir
A disease of swine that has a short incubation period and is highly fatal
Highly contagious disease of cattle
A disease of cattle transmitted by a tick vector
(Ans- A disease of various species that has wild birds as a reservoir
,Mechanisms for the introduction of foreign animal diseases include:
Importation of animals and animal products
Wildlife movement
Humans
All of the above
(Ans- All of the above
There is an outbreak of an infectious agent known to be transmitted directly and
persist in the environment. Which of the following is a high risk for transmission
and something you want to focus on immediately for control?
Vertical transmission
Transstadial transmission
Fomite transmission
None of the above. Outbreaks of these types of infectious agents have a low risk
of transmission and dies out quickly so no route of transmission poses a higher
risk than another
(Ans- Fomite transmission
It is unknown how West Nile virus entered the U.S. in 1999. Based on what you
know about the virus, what would be the most likely source(s) for introduction:
Infected humans
Infected horses
,Any infected mammal
Infected mosquitoes and birds
(Ans- infected mosquitoes and birds
Lambs born to sheep with contagious agalactia, an OIE listed disease classically
caused by Mycoplasma agalactia, can be infected through the colostrum. This is an
example of:
Horizontal transmission
Indirect contact
Vertical transmission
Vector-borne transmission
(Ans- Vertical transmission
The defining characteristic of reservoir hosts is that they:
Never show clinical signs of infection
Almost always show clinical signs of infection
Serve as a habitat in which the pathogen can survive
Transmit infectious by aerosol spread of direct contact, but not by indirect contact
(Ans- Serve as a habitat in which the pathogen can survive
, A foreign animal disease could enter the United States on/in:
A salted dried ham sandwich
The boots of a traveler who while on traveling internationally walked the
footpaths where animal graze
An infected human traveler
All of the above
(Ans- All of the above
Classical swine fever (hog cholera) can e spread between pigs on a contaminated
bucket. this is an example of:
Direct transmission
Vector-borne transmission
Transmission on fomites
Iatrogenic transmission
(Ans- Transmission on fomites
What is a fomite?
A living creature that acquires a pathogen form one living host and transmits it to
another
Body fluids (e.g. blood, nasal secretions) containing infectious agents
A contaminated inanimate object such as clothing, milking equipment, trucks
Which option below places possible public responses to risk from the most
frequent reaction to the least frequent reaction?
Fear, Denial, Panic, Acceptance
Denial, Fear, Panic, Acceptance
Acceptance, Fear, Denial, Panic
Panic, Denial, Fear, Acceptance
Denial, Acceptance, Panic, Fear
(Ans- Acceptance, Fear, Denial, Panic
True/False: the risk analysis paradigm assumes that in many cases there is a zero
risk of harm.
(Ans- False
Which of these types of diseases would be most difficult to prevent entering and
infecting animals in the U.S? All pose a risk but which would pose the highest risk?
A disease of various species that has wild birds as a reservoir
A disease of swine that has a short incubation period and is highly fatal
Highly contagious disease of cattle
A disease of cattle transmitted by a tick vector
(Ans- A disease of various species that has wild birds as a reservoir
,Mechanisms for the introduction of foreign animal diseases include:
Importation of animals and animal products
Wildlife movement
Humans
All of the above
(Ans- All of the above
There is an outbreak of an infectious agent known to be transmitted directly and
persist in the environment. Which of the following is a high risk for transmission
and something you want to focus on immediately for control?
Vertical transmission
Transstadial transmission
Fomite transmission
None of the above. Outbreaks of these types of infectious agents have a low risk
of transmission and dies out quickly so no route of transmission poses a higher
risk than another
(Ans- Fomite transmission
It is unknown how West Nile virus entered the U.S. in 1999. Based on what you
know about the virus, what would be the most likely source(s) for introduction:
Infected humans
Infected horses
,Any infected mammal
Infected mosquitoes and birds
(Ans- infected mosquitoes and birds
Lambs born to sheep with contagious agalactia, an OIE listed disease classically
caused by Mycoplasma agalactia, can be infected through the colostrum. This is an
example of:
Horizontal transmission
Indirect contact
Vertical transmission
Vector-borne transmission
(Ans- Vertical transmission
The defining characteristic of reservoir hosts is that they:
Never show clinical signs of infection
Almost always show clinical signs of infection
Serve as a habitat in which the pathogen can survive
Transmit infectious by aerosol spread of direct contact, but not by indirect contact
(Ans- Serve as a habitat in which the pathogen can survive
, A foreign animal disease could enter the United States on/in:
A salted dried ham sandwich
The boots of a traveler who while on traveling internationally walked the
footpaths where animal graze
An infected human traveler
All of the above
(Ans- All of the above
Classical swine fever (hog cholera) can e spread between pigs on a contaminated
bucket. this is an example of:
Direct transmission
Vector-borne transmission
Transmission on fomites
Iatrogenic transmission
(Ans- Transmission on fomites
What is a fomite?
A living creature that acquires a pathogen form one living host and transmits it to
another
Body fluids (e.g. blood, nasal secretions) containing infectious agents
A contaminated inanimate object such as clothing, milking equipment, trucks
