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港媒:香港夏季流感339人死亡 传播影响接近尾声

2017-08-15 14:31:54   中国青年网

中新网8月15日电 据香港《文汇报》报道,香港夏季流感接近尾声。根据香港医院管理局统计数据,自5月5日重启流感监测机制起,至8月8日共有339人死亡,香港医管局称,今年夏季流感的死亡率约为2.2%。

资料图:医院就诊情况 图片来源:香港《大公报》

香港医院管理局总感染控制主任曾艾壮称,今年夏季流感主要为甲型H3流感,特点是长者、儿童等高危人群被感染。今年4月23日至8月5日,共录得18685宗流感个案,其中88%患者的样本对甲型(H3)流感病毒呈阳性反应。所有患者中,近半数为65岁以上的长者。

曾艾壮续称,今次所有怀疑流感而入院的个案,均会通过快速病毒测试(PCR test),其中对甲型流感病毒呈阳性的样本比例,由七月中旬的40%下降至10%。以伊利沙伯医院为例,自8月9日起连续两日低于10%,反映夏季流感接近尾声。

自5月5日重启流感监测机制起至8月8日,医管局共录得15485人入院检查,其中需要入住深切治疗部或者死亡的“重症案例”共484宗,包括18名儿童。466宗成人“重症案例”中,82%的患者本身为“高危人士”,即有心脏病、糖尿病、脑血管疾病等,感染流感后引起并发症的风险极高。

早前有报道称,香港夏季流感死亡人数超过“非典”,曾艾壮认为“两者非常不同”。他指,至8月8日,共有339人死亡,死亡率约为2.19%,远低于非典期间17%的死亡率。他又说,“流感较为普遍,不少人选择在基层医疗,因此(特区)医管局统计的流感数字只占实际的10%,而沙士病情严重,多为医院诊断,非常接近实际情况。”显示流感统计数据不及“非典”完善。

另外,夏季流感死亡个案中,约一半曾经注射过流感疫苗。曾艾壮称,根据美国疾病控制与预防中心数据,今年冬季流感疫苗有效率约为34%,低于正常情况下40%至60%的有效率,显示疫苗需要“更新”,但不建议增加疫苗剂量,因为可能出现抗药性等问题。

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