超星 - Quiz of lecture 11

单选题

Which statement about apparent infection is not right?

A. Significant signs and symptoms are found clinically;
B. The pathogens would be eliminated completely after recovery from infection;
C. Pathogens could be transmitted to other persons;
D. The bacterial virulence is higher, the host immunity is weaker;

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单选题

Which type is the following systemic infection when the bacteria replicate in the local infected tissue and release the toxins into blood stream to cause diseasein other organs?

A. bacteremia.
B. septicemia,
C. toxemia,
D. endotoxemia.
E. pyemia

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单选题

Which type is the following systemic infection when bacteria invade into blood-stream to spread and infect other organs at which they grow to cause disease?

A. bacteremia,
B. toxemia,
C. septisemia,
D. endotoxemia.

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单选题

Which type is the following systemic infection when poisonous substances(toxin) produced by certain bacteria in the bloodstream to cause serious conditions?

A. bacteremia:
B. toxemia,
C. septisemia,
D. endotoxemia.
E. pyemia

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单选题

Which type is the following systemic infection when bacteria release its LPS into blood to cause systemic diseases?

A. bacteremia:
B. toxemia,
C. septisemia,
D. pyemia
E. endotoxemia.

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单选题

Which of the following statements is the best definition of a pandemic disease?

A. It occurs infrequently at no predictable time scattered over a largearea or population.
B. It normally occurs in a given geographic area.
C. It is an epidemic that occurs on more than one continent at thesame time.
D. It is a disease that occurs more frequently than usual for ageographical area or group of people.

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单选题

Which term refers to the number of new cases of an infectious disease in a given area or population during a given period of time?

A. prevalence:
B. incidence,
C. epidemic,
D. endemic

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单选题

Which term refers to the total number of cases, both new and alreadyexisting, in a given area or population during a given period of time?

A. prevalence:
B. incidence,
C. epidemic,
D. endemic

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单选题

Which type of treatment could induce superinfection?

A. Long term and large doses antibiotics treatment:
B. Long term chemotherapy against tumor,
C. Infection happens after tooth extraction;
D. Long term hormone therapy.

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单选题

Which disease is not caused by endotoxin?

A. shock
B. fever
C. hypertension
DIC

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