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the next set of slides refers to normally microbe free areas of the body.

What two factors contribute to transient microflora appearing in normally microbe free tissue?. . How do these terms differ? Infection infestation disease. . Virulence refers to the intensity of

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the next set of slides refers to normally microbe free areas of the body.

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    1. The next set of slides refers to normally microbe free areas of the body. Think about the questions above the plates as we go through the slides.

    2. What two factors contribute to transient microflora appearing in normally microbe free tissue?

    3. How do these terms differ? Infectioninfestationdisease

    4. Virulence refers to the intensity of….

    5. What parts of the ear normally have microbes?

    6. Do all virulent transient microbes cause disease in the host?

    7. What is microbial antagonism?

    8. Which parts of the renal system are normally germ free?Why do males have an advantage in germ avoidance?

    9. Is semen always germ free?

    10. All of the following pertain to microbial virulence EXCEPT: A) varies among different microbial species B) varies within the same species of a pathogen C) increases with animal passage D) increases by attenuation E) decreased by transposal of virulence technique

    11. All of the following refer to the normal microflora EXCEPT A) fetus is in a sterile environment B) resident microorganisms normally do not cause disease C) some microorganisms are resident while others are transient D) resident microorganisms found in nervous system and blood

    12. Microflora organisms on or in an individual human body may become opportunistic under the following conditions EXCEPT: A) the individual is malnourished B) the individual is immunocompromised C) the microorganism gains entrance to an unusual body site D) the normal microbiota is disturbed E) the individual experiences microbial antagonism

    13. Which of the following must be true in order to satisfy Koch’s postulates? A) causative agent observed in a small percentage of cases of disease B) must be isolated from hosts that are not inoculated with the pure culture C) when pure cultures inoculated in healthy hosts, they do not show disease D) causative agent must be isolated from diseased host and grown in pure culture E) causative agent must not be re-isolated from healthy hosts inoculated with pure culture

    14. Factors that improve the chances of a pathogen’s ability to invade a host and cause infection are known as: A) contagious factors B) non-communicable factors C) viral factors D) virulence factors E) Koch’s factors

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