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许多传染病,由于病原体本身的致病力、机体或人群的免疫力以及周围环境等因素的变化,其临床面貌、实验室特点与流行病学规律都可发生显著的变化。以细菌性(化脓性)脑膜炎为例,由于许多因素的变化,特别是多种抗菌素的问世与广泛应用,不仅细菌性脑膜炎的病原菌分布发生了明显的变化,而且在其临床表现和实验室特点方面也发生了深刻的变化,以致常常引起诊断方面的困难,从而延误了正确的治疗,影响了病人的预后。鉴于这种类型的脑膜炎于
Many infectious diseases, due to pathogenicity of the virulence of the body itself, the immunity of the body or population and the surrounding environment and other factors, the clinical appearance, laboratory characteristics and epidemiological changes can be significant. In bacterial (suppurative) meningitis, for example, due to many factors, especially the advent of a variety of antibiotics and the widespread use of not only bacterial meningitis pathogenic distribution of significant changes have taken place, but also in its clinical manifestations and experiments There have also been profound changes in ventricular characteristics that often cause diagnostic difficulties that delay the correct treatment and affect the patient’s prognosis. Given this type of meningitis