Microorganisms and Disease
Both Mycobacterium tuberculosis and Streptococcus pneumoniae

are acquired by inhalation
have cell walls that contain a high content of mycolic acids
have polysaccharide capsules
stay in the lung and rarely, if ever, enter the bloodstream

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Microorganisms and Disease
The influenza vaccine is administered each year because

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
mutations in the viral hemagglutinin may allow the virus to evade the immune response elicited by previous vaccines

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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 highly contagious
Anthrax is caused by a virus
Inhalation Anthrax requires infection with a large number of spores

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