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　　(作??(zuo)者??(zhe)：潘??(pan)新??(xin)??，系??(xi)上?(shang)海??(hai)中??(zhong)醫(yī)??(yi)藥??(yao)大??(da)學??(xue)附??(fu)屬??(shu)曙??(shu)光??(guang)醫(yī)??(yi)院??(yuan)風??(feng)濕??(shi)病??(bing)科??(ke)主??(zhu)任??(ren)、主??(zhu)任??(ren)醫(yī)??(yi)師??(shi))　　兒?(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??(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??(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??(zhi)過??(guo)度??(du)反?(fan)應??(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)??。。