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

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

ANSWER DOWNLOAD EXAMIANS APP

Microorganisms and Disease
Type III secretion systems are used to inject "effector" proteins directly into a host cell. Salmonella uses a type III secretion system to help the pathogen to

secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine
survive the acid pH of the stomach
survive within macrophages
activate T cells to proliferate and secrete cytokines

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 possesses a type III secretion system and EPEC does not
EPEC rearranges host cell actin and EHEC does not
EHEC secretes a Shiga-like toxin and EPEC does not

ANSWER DOWNLOAD EXAMIANS APP

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

The ability of the Rotavirus to be transmitted faster
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

ANSWER DOWNLOAD EXAMIANS APP