Department of Health and Ageing, Canberra, Australian Capital Territory, Australia.
Emerg Infect Dis. 2011 Jul;17(7):1188-94. doi: 10.3201/eid1707.101135.
Understanding the dynamics of influenza transmission on international flights is necessary for prioritizing public health response to pandemic incursions. A retrospective cohort study to ascertain in-flight transmission of pandemic (H1N1) 2009 and influenza-like illness (ILI) was undertaken for 2 long-haul flights entering Australia during May 2009. Combined results, including survey responses from 319 (43%) of 738 passengers, showed that 13 (2%) had an ILI in flight and an ILI developed in 32 (5%) passengers during the first week post arrival. Passengers were at 3.6% increased risk of contracting pandemic (H1N1) 2009 if they sat in the same row as or within 2 rows of persons who were symptomatic preflight. A closer exposed zone (2 seats in front, 2 seats behind, and 2 seats either side) increased the risk for postflight disease to 7.7%. Efficiency of contact tracing without compromising the effectiveness of the public health intervention might be improved by limiting the exposed zone.
了解国际航班上流感传播的动态对于优先应对大流行入侵的公共卫生反应是必要的。2009 年 5 月，对两架进入澳大利亚的长途航班进行了一项回顾性队列研究，以确定大流行（H1N1）2009 流感和流感样疾病（ILI）在飞行中的传播情况。包括对 738 名乘客中的 319 名（43%）的调查答复在内的综合结果表明，13 名（2%）在飞行中出现 ILI，32 名（5%）乘客在抵达后的第一周内出现 ILI。如果乘客坐在与飞行前出现症状的人同排或前后两排的座位上，则感染大流行（H1N1）2009 的风险增加 3.6%。如果处于更接近的暴露区域（前排 2 个座位、后排 2 个座位和两侧各 2 个座位），则出现飞行后疾病的风险增加到 7.7%。通过限制暴露区域，可以提高接触追踪的效率，同时又不影响公共卫生干预的效果。
