Research Laboratory of the Massachusetts General Hospital, Boston.
J Exp Med. 1921 Jul 31;34(2):211-6. doi: 10.1084/jem.34.2.211.
Specific agglutinins for the homologous pneumococcus are lacking or present only in small amount in the pneumonic exudates due to the fixed types of pneumococci. Suspensions of fixed types of pneumococci in the supernatant fluid obtained after centrifuging the mash of the pneumonic lung give positive agglutination tests in dilutions not higher than equal parts of suspension and supernatant fluid (1:2). The pneumonic lung contains a soluble substance inhibiting agglutination of the fixed types of pneumococci by the homologous antipneumococcus serum.
由于肺炎球菌的固定类型,肺炎渗出物中缺乏或仅有少量同源肺炎球菌的特异性凝集素。将肺炎肺部的糊状物离心后获得的上清液中的固定类型肺炎球菌悬液在不高于悬液和上清液(1:2)等分稀释度的情况下进行阳性凝集试验。肺炎肺中含有一种可溶性物质,可抑制同源抗肺炎球菌血清对固定类型肺炎球菌的凝集作用。