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　　在??(zai)人??(ren)類?(lei)演??(yan)化??(hua)的??(de)長??(chang)河??(he)中??(zhong)??，人??(ren)體??(ti)免??(mian)疫??(yi)系??(xi)統(tǒng)?(tong)猶??(you)如??(ru)一??(yi)座??(zuo)精??(jing)密??(mi)設?(she)計??(ji)的??(de)防?(fang)御??(yu)工??(gong)事??(shi)??，其??(qi)運?(yun)作??(zuo)機??(ji)制??(zhi)既??(ji)展??(zhan)現(xiàn)??(xian)著??(zhe)生??(sheng)命??(ming)演??(yan)化??(hua)的??(de)智?(zhi)慧??(hui)??，也??(ye)蘊??(yun)含??(han)著??(zhe)醫(yī)??(yi)學??(xue)干??(gan)預??(yu)的??(de)啟??(qi)示?(shi)?。??猶??(you)如??(ru)一??(yi)個??(ge)“隱??(yin)形??(xing)盾??(dun)牌??(pai)”??，免??(mian)疫?(yi)防??(fang)御??(yu)遵??(zun)從??(cong)怎??(zen)樣??(yang)的?(de)層??(ceng)次??(ci)？??不??(bu)同??(tong)年??(nian)齡??(ling)的??(de)免??(mian)疫??(yi)特??(te)點??(dian)有??(you)哪??(na)些??(xie)？人??(ren)體??(ti)免??(mian)疫??(yi)平??(ping)衡??(heng)的??(de)本??(ben)質??(zhi)又??(you)是??(shi)什??(shen)么??(me)？來??(lai)看?(kan)看??(kan)它?(ta)的??(de)運??(yun)作??(zuo)奧??(ao)秘??(mi)??！　∶?(mian)疫??(yi)系??(xi)統(tǒng)??(tong)如??(ru)同??(tong)人??(ren)體??(ti)的??(de)“智?(zhi)能??(neng)防?(fang)衛(wèi)??(wei)軍??(jun)”??，在??(zai)不??(bu)同??(tong)人?(ren)生??(sheng)階??(jie)段??(duan)需??(xu)要??(yao)差??(cha)異??(yi)化??(hua)的??(de)戰(zhàn)??(zhan)略?(lve)部??(bu)署??(shu)??。??現(xiàn)??(xian)代??(dai)醫(yī)??(yi)學??(xue)研??(yan)究?(jiu)發(fā)??(fa)現(xiàn)?(xian)??，0～3歲??(sui)兒?(er)童??(tong)免??(mian)疫??(yi)記??(ji)憶??(yi)形??(xing)成??(cheng)速??(su)度??(du)約??(yue)為??(wei)成??(cheng)人?(ren)的??(de)3倍??(bei)??，而??(er)60歲??(sui)后??(hou)胸??(xiong)腺??(xian)功?(gong)能??(neng)每??(mei)年??(nian)衰??(shuai)退??(tui)3%??。因??(yin)此?(ci)??，掌??(zhang)握??(wo)各??(ge)年??(nian)齡??(ling)段??(duan)的??(de)免??(mian)疫??(yi)維??(wei)護??(hu)密?(mi)碼??(ma)??，才?(cai)能??(neng)讓??(rang)這??(zhe)道?(dao)健??(jian)康?(kang)防??(fang)線??(xian)愈??(yu)加??(jia)堅??(jian)固??(gu)??。。