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　　其??(qi)實??(shi)像??(xiang)過??(guo)敏??(min)性??(xing)疾??(ji)病??(bing)??，就??(jiu)是??(shi)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)將??(jiang)花??(hua)粉?(fen)、塵??(chen)螨?(man)等??(deng)微??(wei)害??(hai)物??(wu)質(zhì)??(zhi)誤??(wu)判??(pan)為??(wei)高??(gao)度??(du)危??(wei)險??(xian)??，過??(guo)度??(du)反??(fan)應(yīng)??(ying)引??(yin)發(fā)??(fa)噴??(pen)嚏??(ti)、皮??(pi)疹??(zhen)甚??(shen)至?(zhi)哮??(xiao)喘??(chuan)??。??還??(hai)有??(you)自??(zi)身??(shen)免??(mian)疫??(yi)病??(bing)??，屬??(shu)于??(yu)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)“敵??(di)我??(wo)不??(bu)分??(fen)”??，攻??(gong)擊?(ji)自??(zi)身??(shen)關(guān)??(guan)節(jié)??(jie)(如??(ru)類??(lei)風??(feng)濕?(shi)關(guān)??(guan)節(jié)?(jie)炎??(yan))、全??(quan)身??(shen)各?(ge)系??(xi)統(tǒng)??(tong)(如??(ru)系??(xi)統(tǒng)??(tong)性??(xing)紅??(hong)斑??(ban)狼??(lang)瘡??(chuang))或??(huo)甲??(jia)狀??(zhuang)腺?(xian)(如??(ru)橋??(qiao)本?(ben)氏??(shi)甲??(jia)狀??(zhuang)腺??(xian)炎??(yan))??。　　先??(xian)天?(tian)性??(xing)免??(mian)疫??(yi)是??(shi)人??(ren)類??(lei)與??(yu)生??(sheng)俱?(ju)來??(lai)的??(de)防??(fang)御?(yu)系??(xi)統(tǒng)??(tong)??，如秘(ru)同??(tong)城??(cheng)堡??(bao)的??(de)第??(di)一??(yi)道??(dao)城??(cheng)墻??(qiang)和??(he)巡??(xun)邏??(luo)衛(wèi)??(wei)兵?(bing)??，能??(neng)在??(zai)病??(bing)原??(yuan)體??(ti)入??(ru)侵??(qin)時?(shi)迅?(xun)速??(su)反??(fan)應(yīng)??(ying)??。?。