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香港流感凶猛来袭 专家支招如何应对

2017-08-09 04:03:35   中国青年网

暑期正值赴港旅游的高峰,一些武汉赴港旅游者致电本报表达担忧。湖北省疾控专家刘琳琳昨天告诉记者:这次肆虐香港的流感主要是甲型流感H3N2(简称“甲3流感”),是目前最常见的季节性流感型别之一,做好常规预防注意事项,可以放心出游。记者昨日还连线几位家住香港的武汉人,大家都表现得轻松如常。

香港夏季流感高峰期持续爆发。8月8日香港卫生署公布的最新统计数据显示,自今年5月5日至8月6日,已累计造成324人死亡,绝大部分属于甲型H3N2流感。香港卫生署防护中心发言人称,预期未来数周内,香港季节性流感仍会继续维持在高水平。发言人特别强调:今夏流感死亡数字低于2015年冬季,被拿来与SARS比较有违科学,实际上SARS的死亡率远高于流感。

流感提前爆发但无耐药性变化

流感危机已经蔓延到与香港一桥之隔的深圳。深圳连续3周发布流感最高级别预警,本周依旧处在“危险期”。根据深圳流感监测哨点医院的监测数据分析,8月2日—8月8日流感指数为I级(极易发生),提示流感流行强度高。

湖北省疾控中心卫生检验所流感参比实验室主任刘琳琳告诉记者,流感病毒每年都会流行,今年的疫情与往年相比并没有特殊变化。但今年南方的夏季流感高峰前移,大致提前了20天左右。

“目前正值夏季流感的快速上升期。”刘琳琳分析,疫情或将持续到9月底。她介绍,这次肆虐香港的流感主要是甲型流感H3N2(简称“甲3流感”),是目前最常见的季节性流感型别之一。最近3年,湖北主要流行的也是这一亚型的流感。

香港大学微生物学系讲座教授袁国勇与名誉助理教授龙振邦指出,香港此次的流感虽然并未出现抗原漂移,但仍存在小抗原的变异。他们认为,这可能是导致今次流感高峰的原因之一。

刘琳琳说,与往年相比,今年的流感来得急,上升势头很快。好在耐药性并未发生变化,抗病毒药达菲依旧是特效药。

甲流病毒致死率极低多为并发症

为何这次的香港夏季流感会造成如此多的患者死亡?

刘琳琳透露,一直以来,流感都是可以造成患者死亡的,只不过重症率和致死率极低。绝大多数死亡病例都是感染流感后 “引爆”了身体原有的基础病,出现严重并发症导致的死亡。免疫力稍弱的老人和小孩儿,则更容易中招!据港媒报道,这次香港的流感疫情主要集中在养老院,死亡者都是长期患病的老者,也证实了这一点。

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