Renault P, Thouillot F, Do C, Baroux N, Cadivel A, Balleydier E, Brottet E, Kermarec F, D'Ortenzio E, Filleul L
Cellule De L'institut De Veille Sanitaire En Région Océan Indien, 2 Bis, Avenue Georges-Brassens, F-97400, Saint-Denis (Réunion), France.
Bull Soc Pathol Exot. 2011 May;104(2):108-13. doi: 10.1007/s13149-010-0113-5. Epub 2010 Dec 22.
In Reunion Island, a French subtropical island located in the southern hemisphere, the monitoring of the epidemiological dynamics of the epidemic linked to the emergence of pandemic virus A(H1N1) 2009 was achieved through the regular influenza surveillance system which has been reinforced on that occasion. It was mainly based on a network of sentinel physicians, combined with virologic monitoring, and on surveillance of severe cases and deaths. The data were analyzed and retroinformation was distributed according to a weekly frequency. The first imported case was confirmed on July 5, 2009 in a traveler arriving from Australia, whereas the first autochthonous cases were reported on July 23. The epidemic peak was reached in five weeks and the duration of the whole epidemic episode was 9 weeks. Pandemic virus has quickly supplanted seasonal viruses that had begun to circulate. The estimated attack rate for symptomatic cases of infection with virus influenza A(H1N1) 2009 was 12.85%. The hospitalization rate was 32 per 10,000 estimated cases, and 24 people had a serious form requiring care in ICU. Among death certificates received at the regional office for health and social affairs, 14 mentioned the influenza, including 7 in whom the pandemic virus has been laboratory confirmed. These deaths occurred in patients significantly younger than usually observed in Reunion Island during the seasonal influenza epidemics. Overall, the epidemic intensity and severity have been similar to those of seasonal influenza in Reunion Island.
在留尼汪岛，一个位于南半球的法国亚热带岛屿，通过当时得到加强的常规流感监测系统，对与2009年甲型H1N1大流行病毒出现相关的疫情流行病学动态进行了监测。它主要基于一个哨点医生网络，结合病毒学监测，以及对重症病例和死亡情况的监测。对数据进行了分析，并按每周一次的频率发布反馈信息。2009年7月5日，一名从澳大利亚抵达的旅行者被确诊为首例输入性病例，而首例本土病例于7月23日报告。疫情在五周内达到高峰，整个疫情持续时间为9周。大流行病毒迅速取代了已经开始传播的季节性病毒。2009年甲型H1N1流感病毒感染有症状病例的估计发病率为12.85%。住院率为每10000例估计病例中有32例，有24人病情严重，需要在重症监护病房接受治疗。在地区卫生和社会事务办公室收到的死亡证明中，有14份提到了流感，其中7例经实验室确认感染了大流行病毒。这些死亡病例的患者年龄明显低于留尼汪岛季节性流感流行期间通常观察到的年龄。总体而言，疫情的强度和严重程度与留尼汪岛季节性流感的情况相似。
