Microorganisms and Disease
All infections do not cause fever and all fevers are not due to infections which of the following is an example of non-infections cause of fever?

Typhoid
Malaria
Rheumatic disease
Chicken pox

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Microorganisms and Disease
The influenza vaccine is administered each year because

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

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

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

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