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

The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings
A limited number of capsule types
The possession of a segmented RNA genome
The ability of the Rotavirus to be transmitted faster

ANSWER DOWNLOAD EXAMIANS APP

Microorganisms and Disease
A major difference between EHEC and EPEC is

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

ANSWER DOWNLOAD EXAMIANS APP

Microorganisms and Disease
The influenza vaccine is administered each year because

it is a polysaccharide vaccine that does not confer long-term protection
the vaccine is sufficiently toxic to make it necessary to administer only a small amount at any one time
mutations in the viral hemagglutinin may allow the virus to evade the immune response elicited by previous vaccines
None of these

ANSWER DOWNLOAD EXAMIANS APP

Microorganisms and Disease
What is common in catheters and ventilators?

They predispose patients to viral rather than bacterial infections
They bypass important defenses of the body
Bacteria responsible for associated infections are usually susceptible to antibiotics
They are used primarily in neonatal intensive care units

ANSWER DOWNLOAD EXAMIANS APP