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　　一??(yi)是??(shi)科??(ke)學??(xue)防??(fang)護??(hu)??，筑??(zhu)牢??(lao)免??(mian)疫??(yi)防??(fang)線??(xian)??。??如??(ru)按??(an)時??(shi)接??(jie)種??(zhong)流??(liu)感??(gan)疫??(yi)苗??(miao)、肺??(fei)炎??(yan)球??(qiu)菌??(jun)疫??(yi)苗?(miao)等?(deng)??，幫?(bang)助?(zhu)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)提??(ti)前??(qian)“記??(ji)住??(zhu)”敵??(di)人?(ren)特?(te)征??(zheng)??。再??(zai)如??(ru)遠??(yuan)離??(li)過?(guo)敏??(min)原??(yuan)??，對??(dui)塵??(chen)螨??(man)、花??(hua)粉??(fen)過??(guo)敏??(min)者??(zhe)??，可??(ke)使?(shi)用??(yong)防??(fang)螨??(man)寢??(qin)具??(ju)、空?(kong)氣??(qi)凈??(jing)化??(hua)器??(qi)???！　∠??(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??(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?(ying)??。??。