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　　其??(qi)次??(ci)是??(shi)清??(qing)除??(chu)威??(wei)脅?(xie)??，包??(bao)括??(kuo)消??(xiao)滅??(mie)細(xì)秘(xi)菌??(jun)、病??(bing)毒??(du)等??(deng)外??(wai)來?(lai)入??(ru)侵??(qin)者??(zhe)??，及??(ji)時(shí)??(shi)發(fā)??(fa)現(xiàn)??(xian)并??(bing)清??(qing)除??(chu)異??(yi)常??(chang)細(xì)??(xi)胞??(bao)??，防??(fang)止??(zhi)腫??(zhong)瘤??(liu)形??(xing)成??(cheng)??。??　　老??(lao)年?(nian)期??(qi)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)如??(ru)同??(tong)“老??(lao)兵?(bing)”??，經(jīng)?(jing)驗(yàn)??(yan)豐??(feng)富??(fu)但?(dan)機(jī)??(ji)能??(neng)衰??(shuai)退??(tui)??，需??(xu)針??(zhen)對??(dui)性??(xing)維??(wei)護(hù)??(hu)以??(yi)降?(jiang)低??(di)重?(zhong)癥??(zheng)風(fēng)??(feng)險(xiǎn)??(xian)??。??這??(zhe)一??(yi)時(shí)??(shi)期??(qi)的??(de)免??(mian)疫??(yi)特??(te)點(diǎn)??(dian)??，一??(yi)是??(shi)T細(xì)??(xi)胞??(bao)功??(gong)能??(neng)退??(tui)化??(hua)??，記??(ji)憶??(yi)T細(xì)??(xi)胞??(bao)主??(zhu)導(dǎo)??(dao)??，但?(dan)清??(qing)除??(chu)病??(bing)原?(yuan)體??(ti)能??(neng)力??(li)下??(xia)降??(jiang)；二??(er)是??(shi)抗??(kang)體?(ti)質(zhì)??(zhi)量??(liang)降??(jiang)低??(di)??，疫??(yi)苗??(miao)應(yīng)?(ying)答??(da)減?(jian)弱??(ruo)??，感??(gan)染??(ran)(如??(ru)肺??(fei)炎??(yan)、帶??(dai)狀??(zhuang)皰??(pao)疹??(zhen))易??(yi)重??(zhong)癥??(zheng)化??(hua)；三??(san)是??(shi)衰??(shuai)老??(lao)相?(xiang)關(guān)?(guan)疾??(ji)病??(bing)發(fā)??(fa)病??(bing)風(fēng)??(feng)險(xiǎn)??(xian)上?(shang)升??(sheng)：免??(mian)疫??(yi)監(jiān)?(jian)視??(shi)功?(gong)能?(neng)減??(jian)弱??(ruo)??，無??(wu)法??(fa)及?(ji)時(shí)??(shi)清??(qing)除??(chu)突??(tu)變??(bian)細(xì)??(xi)胞??(bao)??。HUAQQMPDTAqibao666888　　qi ??(qi)ci ??(ci)shi ??(shi)qing ??(qing)chu ??(chu)wei ??(wei)xie ?(xie)??，bao ??(bao)kuo ??(kuo)xiao ??(xiao)mie ??(mie)xi 秘(xi)jun ??(jun)、bing ??(bing)du ??(du)deng ??(deng)wai ??(wai)lai ?(lai)ru ??(ru)qin ??(qin)zhe ??(zhe)??，ji ??(ji)shi ??(shi)fa ??(fa)xian ??(xian)bing ??(bing)qing ??(qing)chu ??(chu)yi ??(yi)chang ??(chang)xi ??(xi)bao ??(bao)??，fang ??(fang)zhi ??(zhi)zhong ??(zhong)liu ??(liu)xing ??(xing)cheng ??(cheng)??。??　　lao ??(lao)nian ?(nian)qi ??(qi)mian ??(mian)yi ??(yi)xi ??(xi)tong ??(tong)ru ??(ru)tong ??(tong)“l(fā)ao ??(lao)bing ?(bing)”??，jing ?(jing)yan ??(yan)feng ??(feng)fu ??(fu)dan ?(dan)ji ??(ji)neng ??(neng)shuai ??(shuai)tui ??(tui)??，xu ??(xu)zhen ??(zhen)dui ??(dui)xing ??(xing)wei ??(wei)hu ??(hu)yi ??(yi)jiang ?(jiang)di ??(di)zhong ?(zhong)zheng ??(zheng)feng ??(feng)xian ??(xian)??。??zhe ??(zhe)yi ??(yi)shi ??(shi)qi ??(qi)de ??(de)mian ??(mian)yi ??(yi)te ??(te)dian ??(dian)??，yi ??(yi)shi ??(shi)Txi ??(xi)bao ??(bao)gong ??(gong)neng ??(neng)tui ??(tui)hua ??(hua)??，ji ??(ji)yi ??(yi)Txi ??(xi)bao ??(bao)zhu ??(zhu)dao ??(dao)??，dan ?(dan)qing ??(qing)chu ??(chu)bing ??(bing)yuan ?(yuan)ti ??(ti)neng ??(neng)li ??(li)xia ??(xia)jiang ??(jiang)；er ??(er)shi ??(shi)kang ??(kang)ti ?(ti)zhi ??(zhi)liang ??(liang)jiang ??(jiang)di ??(di)??，yi ??(yi)miao ??(miao)ying ?(ying)da ??(da)jian ?(jian)ruo ??(ruo)??，gan ??(gan)ran ??(ran)(ru ??(ru)fei ??(fei)yan ??(yan)、dai ??(dai)zhuang ??(zhuang)pao ??(pao)zhen ??(zhen))yi ??(yi)zhong ??(zhong)zheng ??(zheng)hua ??(hua)；san ??(san)shi ??(shi)shuai ??(shuai)lao ??(lao)xiang ?(xiang)guan ?(guan)ji ??(ji)bing ??(bing)fa ??(fa)bing ??(bing)feng ??(feng)xian ??(xian)shang ?(shang)sheng ??(sheng)：mian ??(mian)yi ??(yi)jian ?(jian)shi ??(shi)gong ?(gong)neng ?(neng)jian ??(jian)ruo ??(ruo)??，wu ??(wu)fa ??(fa)ji ?(ji)shi ??(shi)qing ??(qing)chu ??(chu)tu ??(tu)bian ??(bian)xi ??(xi)bao ??(bao)??。