美国科学家发现了一种对多种药物有耐药性的微生物菌种是如何伪装自己以躲避人体抗传染免疫系统的。该菌种是引发世界范围内肺炎和其它传染病的主要原因。纽约洛克菲勒大学的研究人员通过使用DNA排列重组和分子“指纹”技术,发现引起肺炎的链球菌将其被膜改变成其它细菌的被膜,以躲避人体的免疫系统。洛克菲勒生物实验室主任亚历山大·汤姆斯称:“这一伪装方法是许多在世界范围内流行传染病对类似青霉素等抗菌素具有耐药性的主要原因。但是我们也许可以根据我们所掌握的 American scientists have discovered how a multi-drug resistant microbial strain disguises itself against the body’s anti-infective immune system. The strain is the main cause of pneumonia and other infectious diseases worldwide. Researchers at Rockefeller University in New York City found that pneumonia-causing streptococci changed their envelope to the envelope of other bacteria by using DNA rearrangement and molecular “fingerprinting” techniques to evade the body’s immune system. Alexander Thomas, director of the Rockefeller Laboratory for Biology, said: "This disguise is the main reason why many of the world’s pandemic strains are resistant to antimicrobials like penicillin, but we can probably use what we know