Lecture 13&14 Review Questions

The ____ stage is the time that lapse between encounter with a pathogen and the first system

____ is an exoenzyme also called "spreading" factor that digests the ground substances that cement animal cell together

__________________ is the ability of a microbe to invade a host and produces substances to evade host defenses and damage the host

_________________ is an infection indigenous to animals but naturally transmissible to humans.

A _________________ infection is acquired or developed during a hospital stay.

_________________ is the process by which microbes gain a more stable foothold in the host.

_________________ are chemical products secreted by live bacterial cells which poison the host.

The _________________ is the primary habitat in the natural world from which a pathogen originates.

A _________________ infection spreads throughout the body via blood and/or lymph fluid.

T/F Exotoxins are protein secreted only by live Gram (+) bacteria.

T/F Normal resident microbes are absent from the lungs.

T/F An infection with Gonorrhea requires an infectious dose of no less than a million cells.

T/F The antiphagocytic factor commonly used by
Chlamydia is secretion of leukocidins

T/F An illness originating from a human bite is generally caused by a mixed infection.

T/F The incidence of a disease is the total of existing cases with respect to the entire population.

T/F Mechanical vectors are not necessary for the life cycle of certain pathogen.

T/F Airborne droplet nuclei are spread only via direct transmission.

The occurrence of Lyme disease mainly in areas where certain species of ticks live would define it as a/an ______________ disease.
a. epidemic
b. pandemic
c. endemic
d. sporadic
e. eradicated

The following are general properties of endotoxins
EXCEPT:

a. they can be found on both Gram positive and Gram negative bacteria
b. they include lipopolysaccharides or teichoic acids
c. they are released from the cell wall during lysis
d. they can cause fever and shock
e. they are toxic in tiny amounts

Factors affecting infection include which of the following:

a. pathogen adhesion mechanisms
b. virulence factors
c. resident flora
d. only two of the above
e. all of the above

Which of the following diseases
IS NOT
known to be a zoonotic infection?
a. Anthrax
b. Syphilis
c. Salmonellosis
d. West Nile Virus
e. Rabies

Which of the following are examples of localized infections?
a. Warts
b. Boils
c. Measles
d. a and b only
e. a, b, and c