2027. Questions and Correct Answers.
Graded A
______ are extracellular enzymes used to invade host tissues. -
ANSExoenzymes
_________ spread occurs when an infected individual passes the infection
on to other individuals, who still pass it on to others, increasing the rate and
number of infections to the susceptible population. - ANSpropagated
A batch of food contaminated with botulism exotoxin, consumed at a family
reunion by most of the members of a family, would be an example of a
outbreak. - ANSPoint source
A blanket from a child with chickenpox is likely to be contaminated with the
virus that causes chickenpox (Varicella-zoster virus). What is the blanket
considered in this case? - ANSfomite
A mosquito bites a person who subsequently develops a fever and
abdominal rash. What type of transmission would this be? - ANSbiological
vector transmission
A patient comes into the emergency department complaining of abdominal
pain, headache, and nausea. The nurse takes blood and sends it to the lab
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, for testing. The results include an elevated white blood cell count. Select
the "sign(s)" in this scenario. - ANSElevated white blood cell count
A patient in the hospital with a urinary catheter develops a bladder
infection. This is an example of a nosocomial infection.
T or F - ANSTrue
A patient is currently staying in the hospital to be treated for cellulitis, an
infection of the skin. During his stay he acquired pneumonia. This new
infection is an example of a ____. - ANSNosocomial infection
A sporadic disease is one that is found regularly in a region.
T or F - ANSFalse
A suspected pathogen is found in all of the diseased patients and in half of
the healthy patients. It can be isolated, cultured, and identified to be the
same pathogen. In this scenario, Koch's postulates are satisfied to link the
pathogen to the disease.
T or F - ANSFalse
An asymptomatic patient has... - ANSno noticeable signs or symptoms
An individual's resident microbiota can cause disease in themselves.
T or F - ANSTrue
Cattle are allowed to pasture in a field that contains the farmhouse well,
and the farmer's family becomes ill with a gastrointestinal pathogen after
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