Blood poisoning occurs when bacteria causing infection in another part of your body enters the bloodstream. Septicemia, the state of having bacteria in your blood, can lead to sepsis. Sepsis is a severe and often life-threatening state of infection if it’s left untreated. But any type of infection – whether bacterial, fungal, or viral – can cause sepsis. And these infectious agents don’t necessarily need to be in a person’s bloodstream to bring about sepsis. Such infections most commonly occur in the lungs, abdomen, and urinary tract.
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