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　　最??(zui)后??(hou)是??(shi)維??(wei)持??(chi)記??(ji)憶??(yi)??，比??(bi)如??(ru)通??(tong)過(guò)?(guo)疫??(yi)苗??(miao)或??(huo)自??(zi)然??(ran)感??(gan)染??(ran)形??(xing)成??(cheng)長(zhǎng)??(chang)期??(qi)保??(bao)護(hù)??(hu)??，例??(li)如??(ru)天??(tian)花??(hua)疫??(yi)苗??(miao)的??(de)終?(zhong)身??(shen)免??(mian)疫??(yi)效??(xiao)果??(guo)；再??(zai)如??(ru)調(diào)??(tiao)節(jié)??(jie)T細(xì)??(xi)胞??(bao)抑?(yi)制??(zhi)過(guò)??(guo)度?(du)反??(fan)應(yīng)?(ying)??，防??(fang)止??(zhi)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)“暴??(bao)走??(zou)”引??(yin)發(fā)??(fa)過(guò)??(guo)敏??(min)或?(huo)炎??(yan)癥?(zheng)風(fēng)??(feng)暴??(bao)??。??BYKHWERSSBqibao666888　　zui ??(zui)hou ??(hou)shi ??(shi)wei ??(wei)chi ??(chi)ji ??(ji)yi ??(yi)??，bi ??(bi)ru ??(ru)tong ??(tong)guo ?(guo)yi ??(yi)miao ??(miao)huo ??(huo)zi ??(zi)ran ??(ran)gan ??(gan)ran ??(ran)xing ??(xing)cheng ??(cheng)chang ??(chang)qi ??(qi)bao ??(bao)hu ??(hu)??，li ??(li)ru ??(ru)tian ??(tian)hua ??(hua)yi ??(yi)miao ??(miao)de ??(de)zhong ?(zhong)shen ??(shen)mian ??(mian)yi ??(yi)xiao ??(xiao)guo ??(guo)；zai ??(zai)ru ??(ru)tiao ??(tiao)jie ??(jie)Txi ??(xi)bao ??(bao)yi ?(yi)zhi ??(zhi)guo ??(guo)du ?(du)fan ??(fan)ying ?(ying)??，fang ??(fang)zhi ??(zhi)mian ??(mian)yi ??(yi)xi ??(xi)tong ??(tong)“bao ??(bao)zou ??(zou)”yin ??(yin)fa ??(fa)guo ??(guo)min ??(min)huo ?(huo)yan ??(yan)zheng ?(zheng)feng ??(feng)bao ??(bao)??。??