Microorganisms And Disease

Which of the following is true regarding anthrax?

A:

Anthrax is caused by a virus

B:

Anthrax is highly contagious

C:

Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis

D:

Inhalation Anthrax requires infection with a large number of spores

Answer: D

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The nature of the poliovirus gives for oral vaccination (satin vaccine) as part of the eradication programme is

A:

heat killed virus

B:

live attenuated strains of all three immunological types

C:

small dosage of wild-type live viruses

D:

formalin-inactivated viruses

Answer: B

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A major difference between EHEC and EPEC is

A:

EHEC secretes a Shiga-like toxin and EPEC does not

B:

EHEC possesses a type III secretion system and EPEC does not

C:

EPEC rearranges host cell actin and EHEC does not

D:

EPEC passes through the placenta to infect the fetus and EHEC does not

Answer: A

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Plastic implants can pose a serious nosocomial infection problem because

A:

phagocytes have trouble moving on the plastic surface

B:

phagocytes have trouble engulfing bacteria embedded in a biofilm

C:

infected implants usually have to be surgically removed

D:

all of the above

Answer: D

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Which of the following characteristic of the Rotavirus was important for the construction of the Rotashield vaccine?

A:

The possession of a segmented RNA genome

B:

A limited number of capsule types

C:

The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings

D:

The ability of the Rotavirus to be transmitted faster

Answer: A

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Questions for: Microorganisms And Disease