Microorganisms and Disease
Both Mycobacterium tuberculosis and Streptococcus pneumoniae

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

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Microorganisms and Disease
Plastic implants can pose a serious nosocomial infection problem because

infected implants usually have to be surgically removed
All of these
phagocytes have trouble moving on the plastic surface
phagocytes have trouble engulfing bacteria embedded in a biofilm

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