Davis J, Garner M G, East I J
Office of the Chief Veterinary Officer, Department of Agriculture Fisheries and Forestry, Canberra, Australia.
Transbound Emerg Dis. 2009 Mar;56(1-2):31-8. doi: 10.1111/j.1865-1682.2008.01060.x.
In 2007, an incursion of equine influenza (EI) occurred in Australia. Accurate maps of property boundaries were used to examine the pattern and mechanism of local spread of EI. This study focussed on a cluster of infected premises (IPs) at Park Ridge, a peri-urban suburb 26 km south of Brisbane, Queensland. The cluster recorded 437 IPs and 81% of these were not contiguous to a previously IP. The mean distance from each new IP to the closest previous IP was 0.85 +/- 1.50 km with a range of 0.01-12.94 km. Eighty-two percent of new IPs were within 1 km of a previous IP. The spatial mean for each week's new IPs showed a consistent trend of movement from east to west throughout the epizootic consistent with the predominant wind patterns. The findings were consistent with the conclusion that EI will routinely spread over 1-2 km via wind-borne aerosol.
2007年，澳大利亚发生了马流感疫情。利用精确的地产边界地图来研究马流感在当地的传播模式和机制。本研究聚焦于位于昆士兰州布里斯班以南26公里处的一个城郊地区——帕克岭的一组感染场所。该集群记录了437个感染场所，其中81%与之前的感染场所不相邻。每个新感染场所到最近的先前感染场所的平均距离为0.85±1.50公里，范围在0.01 - 12.94公里之间。82%的新感染场所位于先前感染场所1公里范围内。在整个 epizootic 期间，每周新感染场所的空间均值显示出从东向西的一致移动趋势，这与主要风向模式一致。这些发现与以下结论一致，即马流感通常会通过空气传播的气溶胶在1 - 2公里范围内传播。
