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

small dosage of wild-type live viruses
formalin-inactivated viruses
live attenuated strains of all three immunological types
heat killed virus

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Microorganisms and Disease
A major difference between EHEC and EPEC is

EHEC secretes a Shiga-like toxin and EPEC does not
EPEC passes through the placenta to infect the fetus and EHEC does not
EPEC rearranges host cell actin and EHEC does not
EHEC possesses a type III secretion system and EPEC does not

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Microorganisms and Disease
Cholera toxin is an A-B type toxin in which the B portions bind to a receptor on a host cell and the A portion enters the cell to cause

ADP ribosylation of guanylate cyclase that stimulates production of cGMP
ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP
ADP ribosylation of adenylate cyclase that stops production of cAMP
cleavage of rRNA that results in disruption of ribosome function

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Microorganisms and Disease
Which of the following is true regarding anthrax?

Anthrax is caused by a virus
Anthrax is highly contagious
Inhalation Anthrax requires infection with a large number of spores
Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis

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