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所谓细菌的致病性,就是指细菌对宿主(动物、人等)引起疾病的能力。细菌种类甚多。分布甚广,遍布大自然及人体、动物体体表,和这些机体与外界牛目通的腔道,如口腔、鼻咽腔、肠道、生殖道等。大多数细菌并不引起疾病,甚至对人有益无害;只有少数细菌能引起疾病,引起各种感染性疾患或引起各种传染病。凡能引起疾病和具有致病性能的细菌,称为病原菌或致病菌。病原菌怎样引起各种各样的疾病?这就取决于不同病原菌的致病性不一,不同病原菌的致病力的强弱程度不一,即毒力强弱不一所致。一般来讲,细菌的致病性是细菌能否引起疾病的质的概念;而
The so-called bacterial pathogenicity, refers to the bacteria on the host (animals, humans, etc.) the ability to cause disease. There are many kinds of bacteria. Widely distributed throughout nature and the human body, animal body surface, and these organisms with the outside world cattle head through the channels, such as the mouth, nasopharyngeal cavity, intestine, genital tract and so on. Most bacteria do not cause disease, even beneficial to humans; only a small number of bacteria can cause disease, cause a variety of infectious diseases or cause a variety of infectious diseases. Where can cause disease and pathogenic bacteria, known as pathogenic bacteria or pathogens. How pathogenic bacteria cause a variety of diseases? This depends on the pathogenicity of different pathogens, different pathogens of varying degrees of virulence, that is, due to the varying degrees of virulence. In general, bacterial pathogenicity is the concept of bacteria can cause disease quality;