2.隐性感染病原体仅诱导机体产生特异性免疫应答,不引起或只引起轻微的组织损伤,在临床上不显出任何症状、体征,甚至生化改变,只能通过免疫学检查才能发现Onlymakethehostproducingspecificimmune response, not having histomorphological damage, nosymptoms and signs, no any biochemical changes, only discoveredbyimmunologicalexaminations病原体通常被清除,但少数人可转变为病原携带状态Pathogens can beeradicated orcarried11
2.隐性感染 病原体仅诱导机体产生特异性免疫应答,不引 起或只引起轻微的组织损伤,在临床上不显出 任何症状、体征,甚至生化改变,只能通过免 疫学检查才能发现 Only make the host producing specific immune response, not having histomorphological damage, no symptoms and signs, no any biochemical changes, only discovered by immunological examinations 病原体通常被清除,但少数人可转变为病原携 带状态 Pathogens can be eradicated or carried 11
3.显性感染病原体侵入人体后,不但诱发免疫应答,而且通过病原体本身或机体的变态反应,导致组织损伤,引起病理改变和临床表现Makethehostproducing specific immune response, having pathological changes显性感染过程结束后,有些传染病可使感染者获得较为稳固的免疫力,另一些传染病免疫力并不牢固 Immunity can be consolidated or temporary12
3.显性感染 病原体侵入人体后,不但诱发免疫应答,而且 通过病原体本身或机体的变态反应,导致组织 损伤,引起病理改变和临床表现 Make the host producing specific immune response, having pathological changes 显性感染过程结束后,有些传染病可使感染者 获得较为稳固的免疫力,另一些传染病免疫力 并不牢固 Immunity can be consolidated or temporary 12
4.病原携带状态病原体侵入人体后,人体不出现任何的疾病状态,但能携带并排出病原体,成为传染病流行的传染源No clinical manifestation but microorganism excreted分类:按病原体:virus carrier,bacteria carrier一按发生和持续时间:convalescent,healthy or incubatory carrier一按携带病原体的持续时间:acuteorchronic carrier13
4.病原携带状态 病原体侵入人体后,人体不出现任何的疾病状 态,但能携带并排出病原体,成为传染病流行 的传染源 No clinical manifestation but microorganism excreted 分类: — 按病原体: virus carrier, bacteria carrier — 按发生和持续时间:convalescent, healthy or incubatory carrier — 按携带病原体的持续时间: acute or chronic carrier 13
5.潜伏性感染病原体感染人体后,机体免疫功能足以将病原体局限化但文不足以将病原体清除,病原体长期潜伏起来,待机体免疫功能下降时引起显性感染 Locates the pathogen but can not wipes it out, can latentlyfora long time, can occurs overtinfection潜伏性感染与病原携带状态的区别?Whatis thedifferentpoint between latent infection and carrier state?14
5. 潜伏性感染 病原体感染人体后,机体免疫功能足以将病原 体局限化但又不足以将病原体清除,病原体长 期潜伏起来,待机体免疫功能下降时引起显性 感染 Locates the pathogen but can not wipes it out, can latently for a long time, can occurs overt infection 潜伏性感染与病原携带状态的区别?What is the different point between latent infection and carrier state ? 14
感染谱频度潜伏感染显性感染病原携带状态隐性感染清除病原体15
潜伏感染 显性感染 病原携带状态 隐性感染 清除病原体 15