Microorganisms and Disease
Fatalities following influenza infection are usually due to the

formation of granulomas in the lung
bacterial superinfection
damage to the heart muscle
dehydration

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Microorganisms and Disease
The "A" subunit of diphtheria toxin

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

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