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　　人??(ren)吸??(xi)入??(ru)花??(hua)粉??(fen)后??(hou)??，產(chǎn)??(chan)生??(sheng)過??(guo)敏??(min)反?(fan)應(yīng)??(ying)即??(ji)為??(wei)花??(hua)粉??(fen)過??(guo)敏??(min)癥??(zheng)??，它??(ta)主??(zhu)要??(yao)是??(shi)特??(te)應(yīng)??(ying)性??(xing)體??(ti)質(zhì)??(zhi)的??(de)患??(huan)者??(zhe)被??(bei)花??(hua)粉??(fen)致??(zhi)敏??(min)后??(hou)??，引??(yin)起??(qi)的??(de)一?(yi)系??(xi)列??(lie)病??(bing)理??(li)生??(sheng)理??(li)過??(guo)程??(cheng)?。??花??(hua)粉??(fen)過??(guo)敏??(min)癥??(zheng)是?(shi)變??(bian)態(tài)?(tai)反??(fan)應(yīng)??(ying)科??(ke)常??(chang)見??(jian)疾??(ji)病??(bing)之??(zhi)一??(yi)??，發(fā)??(fa)病??(bing)率??(lv)呈??(cheng)逐??(zhu)年??(nian)上??(shang)升?(sheng)的??(de)趨??(qu)勢(shì)??(shi)??，嚴(yán)??(yan)重??(zhong)影??(ying)響??(xiang)人??(ren)們??(men)的??(de)健??(jian)康??(kang)和??(he)生??(sheng)活??(huo)?。　　若??(ruo)空??(kong)氣??(qi)中?(zhong)花??(hua)粉??(fen)濃??(nong)度??(du)較??(jiao)高?(gao)??，花??(hua)粉??(fen)可?(ke)能??(neng)會(huì)??(hui)沉??(chen)積??(ji)在??(zai)下??(xia)呼??(hu)吸??(xi)道??(dao)??，導(dǎo)??(dao)致??(zhi)發(fā)??(fa)作??(zuo)性??(xing)喘??(chuan)息??(xi)、咳??(ke)嗽??(sou)、胸??(xiong)悶??(men)等??(deng)過??(guo)敏??(min)性??(xing)哮??(xiao)喘??(chuan)的??(de)癥??(zheng)狀??(zhuang)?。??。