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　　北??(bei)京??(jing)市??(shi)疾??(ji)控??(kong)中?(zhong)心??(xin)建??(jian)議??(yi)花??(hua)粉?(fen)過??(guo)敏??(min)者??(zhe)外??(wai)出??(chu)時??(shi)加??(jia)強??(qiang)防??(fang)護?(hu)??。??　　人??(ren)吸??(xi)入??(ru)花??(hua)粉??(fen)后??(hou)??，產(chǎn)??(chan)生??(sheng)過??(guo)敏??(min)反??(fan)應??(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??(ying)性??(xing)體??(ti)質??(zhi)的??(de)患??(huan)者??(zhe)被??(bei)花秘(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??(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??(shi)??，嚴??(yan)重??(zhong)影??(ying)響??(xiang)人??(ren)們??(men)的?(de)健??(jian)康??(kang)和??(he)生??(sheng)活??(huo)?。。