Microorganisms and Disease
Both Mycobacterium tuberculosis and Streptococcus pneumoniae

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

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

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

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Microorganisms and Disease
The "A" subunit of diphtheria toxin

forms cAMP that leads to fluid accumulation
cause ADP ribosylation of a factor involved in protein synthesis
binds host cell receptors found on heart cells
lysis macrophages with the release of cytokines

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