WGU D311 INFECTIOUS DISEASE TRANSMISSION EXAM
2025 WITH 100% CORRECT ANSWERS
1. Describe the role of pigs and wading birds in the
transmission of Japanese Encephalitis to humans.
Mosquitoes are the only vectors without any animal
reservoirs.
Pigs and wading birds serve as reservoirs for the virus, which
can be transmitted to humans through mosquito bites.
Humans directly contract the disease from pigs and
wading birds. Pigs are the only carriers, while wading
birds are unaffected.
2. Which animals are identified as primary reservoirs
for Human Granulocytic Anaplasmosis (HGA)?
Rats, squirrels and
rabbits Deer,
raccoons and foxes
Bats, cats and dogs
White footed mice, chipmunks and voles
3. How can Toxoplasma gondii be transmitted?
ingestion of oocysts from domestic cat
feces blood transfusion
, transplacental
all of the above
4. Which of the following is the correct sequence for
transmission of Lyme disease to humans?
Ticks feed on deer, then bite humans and transmit the
bacteria.
, Ticks feed on mice, then on deer, then bite humans and
transmit the bacteria.
Ticks do not need to feed on mice or deer to transmit the
bacteria to humans.
Ticks feed on mice, then bite humans and transmit the bacteria.
5. If a new outbreak of St. Louis Encephalitis occurs in an urban
area, what preventive measures should be taken to reduce
transmission from birds to humans?
Implement mosquito control measures and public education on
avoiding mosquito bites.
Increase bird population in urban areas to promote
biodiversity. Encourage outdoor activities during peak
mosquito hours.
Reduce water sources to limit bird habitats.
6. Describe the role of flying squirrels in the transmission of
Epidemic Typhus to humans.
Flying squirrels are the only carriers of Epidemic
Typhus and do not transmit it to humans.
Epidemic Typhus is transmitted solely through
contaminated water, not through animal reservoirs.
Flying squirrels serve as a reservoir for the bacteria that
cause Epidemic Typhus, which can be transmitted to humans
through contact with infected fleas or direct contact with the
animals.
Flying squirrels do not play a role in the transmission of
, Epidemic Typhus.
7. Describe the role of domesticated livestock in the
transmission of Q Fever to humans.
2025 WITH 100% CORRECT ANSWERS
1. Describe the role of pigs and wading birds in the
transmission of Japanese Encephalitis to humans.
Mosquitoes are the only vectors without any animal
reservoirs.
Pigs and wading birds serve as reservoirs for the virus, which
can be transmitted to humans through mosquito bites.
Humans directly contract the disease from pigs and
wading birds. Pigs are the only carriers, while wading
birds are unaffected.
2. Which animals are identified as primary reservoirs
for Human Granulocytic Anaplasmosis (HGA)?
Rats, squirrels and
rabbits Deer,
raccoons and foxes
Bats, cats and dogs
White footed mice, chipmunks and voles
3. How can Toxoplasma gondii be transmitted?
ingestion of oocysts from domestic cat
feces blood transfusion
, transplacental
all of the above
4. Which of the following is the correct sequence for
transmission of Lyme disease to humans?
Ticks feed on deer, then bite humans and transmit the
bacteria.
, Ticks feed on mice, then on deer, then bite humans and
transmit the bacteria.
Ticks do not need to feed on mice or deer to transmit the
bacteria to humans.
Ticks feed on mice, then bite humans and transmit the bacteria.
5. If a new outbreak of St. Louis Encephalitis occurs in an urban
area, what preventive measures should be taken to reduce
transmission from birds to humans?
Implement mosquito control measures and public education on
avoiding mosquito bites.
Increase bird population in urban areas to promote
biodiversity. Encourage outdoor activities during peak
mosquito hours.
Reduce water sources to limit bird habitats.
6. Describe the role of flying squirrels in the transmission of
Epidemic Typhus to humans.
Flying squirrels are the only carriers of Epidemic
Typhus and do not transmit it to humans.
Epidemic Typhus is transmitted solely through
contaminated water, not through animal reservoirs.
Flying squirrels serve as a reservoir for the bacteria that
cause Epidemic Typhus, which can be transmitted to humans
through contact with infected fleas or direct contact with the
animals.
Flying squirrels do not play a role in the transmission of
, Epidemic Typhus.
7. Describe the role of domesticated livestock in the
transmission of Q Fever to humans.
