CLASSIFICATION OF INFECTIONS ACCORDING TO THE EXTENT OF HOST INVOLVEMENT

CLASSIFICATION OF INFECTIONS ACCORDING TO THE EXTENT OF HOST INVOLVEMENT

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CLASSIFICATION OF INFECTIONS ACCORDING TO THE  EXTENT OF HOST INVOLVEMENT   Local infection—limited to a relatively small area of the body    Systemic (generalized) infection—microbes or their products are spread throughout the body by  blood or lymph   Focal infection—agents of infection enter a blood or lymphatic vessel and spread to other  specific parts of the body where they remain confined   Bacteremia—presence of bacteria in the blood Septicemia (sepsis) --the bacteria are not only present in the blood but are multiplying there Toxemia--the presence of toxins in the blood Viremia—presence of viruses in the blood   Primary infection—acute infection causing the initial illness   Secondary infection—caused by an opportunistic pathogen after the primary infection has  weakened the body’s defenses  
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CLASSIFICATION OF INFECTIONS ACCORDING TO THE EXTENT OF HOST INVOLVEMENT

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