Emerg Infect Dis. 2019 May;25(5):944-946. doi: 10.3201/eid2505.180363.
We examined 5 tularemia cases in Arizona, USA, during 2015-2017. All were caused by Francisella tularensis group A.II. Genetically similar isolates were found across large spatial and temporal distances, suggesting that group A.II strains are dispersed across long distances by wind and exhibit low replication rates in the environment.
我们研究了美国亚利桑那州 2015-2017 年期间的 5 例兔热病病例。所有病例均由土拉弗朗西斯菌 A 组 II 型引起。在大的时空距离上发现了遗传相似的分离株,表明 A 组 II 型菌株通过风远距离传播,并在环境中表现出低复制率。