首页> 外文期刊>Journal of Medical Entomology >Detection of Lyme Borrelia in questing Ixodes scapularis (Acari: Ixodidae) and small mammals in Louisiana.
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Detection of Lyme Borrelia in questing Ixodes scapularis (Acari: Ixodidae) and small mammals in Louisiana.

机译:在路易斯安那州探寻肩cap龙舌兰(Acari:Ixodidae)和小型哺乳动物中发现莱姆疏螺旋体。

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Lyme borreliosis is caused by spirochetes from the Borrelia burgdorferi sensu lato species complex. In the United States, B. burgdorferi sensu stricto (s.s.; Johnson, Schmid, Hyde, Steigerwalt, and Brenner) is the most common cause of human Lyme borreliosis. With >25,000 cases reported annually, it is the most common vector-borne disease in the United States. Although approximately 90% of cases are contained to the northeastern and Great Lake states, areas in Canada and some southern states are reporting rises in the number of human disease cases. Louisiana records a few cases of Lyme each year. Although some are most certainly the result of travel to more endemic areas, there exists evidence of locally acquired cases. Louisiana has established populations of the vector tick, Ixodes scapularis (Say), and a wide variety of potential reservoir animals, yet Lyme Borrelia has never been described in the state. Using culture and polymerase chain reaction, we investigated the presence of Lyme Borrelia in both mammals and questing ticks at a study site in Louisiana. Although culture was mostly unsuccessful, we did detect the presence of B. burgdorferi s.s. DNA in 6.3% (11 of 174) of ticks and 22.7% (five of 22) of animal samples. To our knowledge, this is among the first evidence documenting B. burgdorferi s.s. in Louisiana. Further investigations are required to determine the significance these findings have on human and animal health.
机译:莱姆疏螺旋体病是由来自伯氏疏螺旋体种复合体的螺旋体引起的。在美国,B。burgdorferi sensustricto(s.s.; Johnson,Schmid,Hyde,Steigerwalt和Brenner)是人类莱姆疏螺旋体病的最常见原因。每年报告超过25,000例病例,它是美国最常见的媒介传播疾病。尽管大约90%的病例被控制在东北部和大湖州,但加拿大和一些南部州的地区报告的人类疾病病例数有所增加。路易斯安那州每年记录一些莱姆病。尽管最肯定的是一些人到更流行地区旅行的结果,但有证据表明是当地获得的病例。路易斯安那州已经建立了媒介tick,盾肩I(Sx)和各种潜在的水库动物的种群,但该州从未描述过莱姆·博雷利亚。使用培养和聚合酶链反应,我们在路易斯安那州的一个研究地点调查了哺乳动物中莱姆氏疏螺旋体的存在和对tick的搜寻。尽管培养大多不成功,但我们确实检测到了伯氏疏螺旋体的存在。 6.3%(174个中的11个)壁虱和22.7%(22个中的五个)的动物样本中的DNA。据我们所知,这是记载伯氏疏螺旋体的最初证据之一。在路易斯安那州。需要进一步调查以确定这些发现对人类和动物健康的重要性。

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