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Septicemia is the presence of pathogenic bacteria in the bloodstream. Once the bacteria enter the bloodstream, the innate immune system is triggered and starts the complement cascade. This then causes the symptoms of acute infection (fever, malaise, dehydration, fatigue). Depending upon the specific bacteria and the host's immune system, the humoral immune system may also kick into gear, producing antibodies against the invading bacteria.

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Q: What is the pathophysiology of septicemia?
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