近些年来,有关多菌性败血症的报道明显增多,已成为一个重要的临床问题,引起了医务人员的注意。现就有关问题叙述于下:多菌性败血症(pS)又称为混合性败血症、复数菌败血症或多微生物性败血症。pS 的菌种组成可为革蓝阴性菌(G~-菌)、革蓝阳性菌(G~+菌)或霉菌菌群内部的不同菌种,或这些不同菌群的菌种之间的相互混合。pS 可在二种情况下发病,一是多种致病菌种同时通过同一途径侵入血流引起发病,另一是致病种于不同时间侵入血流而引起发病。在后一情况下,血培养时致病菌就先后出现。发病后首次从血中分离到的致病 In recent years, there has been a marked increase in reports of polymicrobial sepsis, which has become an important clinical issue that has drawn the attention of medical personnel. Now on the issue described in the next: Bacterial sepsis (pS), also known as mixed sepsis, multiple bacteremia or multiple microbial septicemia. The bacterial species composition of pS may be different strains of Gram-negative bacteria (G ~ - bacteria), Gram-positive bacteria (G ~ + bacteria) or molds, or the mutual relations among the strains of these different bacteria mixing. pS can be two cases of disease, one is a variety of pathogenic bacteria at the same time by the same way invade the bloodstream caused by the disease, the other is pathogenic species at different times invade the bloodstream and cause disease. In the latter case, pathogenic bacteria are present in blood cultures. After the onset of the disease isolated from the blood for the first time