细菌L 型的产生是细菌变异的结果,变为L 型后,无论其形态、对渗透压的敏感性、抗原性、革兰氏染色特性、药物敏感试验以及临床特点等均可与原菌不同。因此,本文将我院87—88年3月,收治的62例中枢神经系统感染性疾病中,经高渗L 型培养基培养所获并经返祖证实的8例细菌L 型脑膜炎报告如下。 Bacterial L-type production is the result of bacterial variation, into L-type, regardless of its morphology, sensitivity to osmotic pressure, antigenicity, Gram staining, drug sensitivity tests and clinical features, etc. can be different from the original bacteria . Therefore, this article will be our hospital in 87-88 March, 62 cases of central nervous system infectious diseases, the culture of hypertonic L-type culture medium and confirmed by the ancestral confirmed eight cases of bacterial meningitis L .