Which mechanism about how LPS induces fever is not right?
A. LPS stimulate monocytes in blood to release IL6,IL1 and TNFa;
B. IL6,IL1 and TNFa are called endougenous pyrogens to stimulate hypothalamus and induce fever ;
C. IL6,IL1 and TNFa are elevated and circulaedin blood to reach brain;
D. LPS enter blood to reach hypothalamus directly to induce fever.
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Which statement about carrier is right?
A person with asymptomatic infection that can be transmitted to other persons.
B. A person with symptomatic infection that can be transmitted to other persons.
C. A person with symptomatic infection that can`t be transmitted to other persons.
D. A person with asymptomatic infection that can`t be transmitted to other persons.
Which statement about inapparent infection is not right?
A. The bacterial virulence is weaker, the immunity of the host is stronger;
B. No symptoms are found clinically by a doctor;
C. No pathogens are transmitted to other person;
D. Antibody may be induced in inapparent infection.
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;
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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