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學(xué)習(xí)快評丨qibao666888　　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?(yan)豐??(feng)富??(fu)但??(dan)機??(ji)能??(neng)衰??(shuai)退??(tui)??，需??(xu)針??(zhen)對??(dui)性??(xing)維??(wei)護?(hu)以??(yi)降??(jiang)低??(di)重??(zhong)癥??(zheng)風(fēng)??(feng)險??(xian)??。??這?(zhe)一??(yi)時??(shi)期??(qi)的??(de)免?(mian)疫??(yi)特?(te)點??(dian)??，一??(yi)是??(shi)T細??(xi)胞??(bao)功??(gong)能??(neng)退??(tui)化??(hua)??，記??(ji)憶??(yi)T細??(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??(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??(shi)清??(qing)除??(chu)突??(tu)變??(bian)細??(xi)胞??(bao)???！　??(er)童??(tong)至??(zhi)青??(qing)少??(shao)年?(nian)期??(qi)(4～18歲??(sui))??，隨??(sui)著??(zhe)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)逐??(zhu)漸??(jian)成?(cheng)熟??(shu)??，適??(shi)應(yīng)??(ying)性?(xing)免??(mian)疫??(yi)(T細??(xi)胞??(bao)、B細??(xi)胞??(bao))開?(kai)始??(shi)發(fā)??(fa)揮??(hui)主??(zhu)力??(li)作??(zuo)用??(yong)??，能??(neng)針??(zhen)對??(dui)病??(bing)原??(yuan)體??(ti)產(chǎn)??(chan)生??(sheng)特??(te)異??(yi)性??(xing)抗??(kang)體??(ti)??。??但??(dan)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)也??(ye)可??(ke)能??(neng)因?(yin)“經(jīng)?(jing)驗??(yan)不??(bu)足??(zu)”而??(er)反??(fan)應(yīng)??(ying)過??(guo)度?(du)??，如??(ru)對??(dui)花??(hua)粉??(fen)、食??(shi)物??(wu)等??(deng)無??(wu)害??(hai)物??(wu)質(zhì)??(zhi)過??(guo)度??(du)反??(fan)應(yīng)??(ying)??，引??(yin)發(fā)??(fa)哮??(xiao)喘?(chuan)、濕??(shi)疹?(zhen)；如??(ru)接??(jie)觸?(chu)外??(wai)界??(jie)增??(zeng)多?(duo)??，易??(yi)感??(gan)染??(ran)手??(shou)足??(zu)口??(kou)病??(bing)、水??(shui)痘??(dou)等??(deng)傳??(chuan)染??(ran)病??(bing)??。。