正规的布鲁塞拉物种-宿主依赖性正在发生变化,然而,抗生素敏感性概况仍然没有变化
Elif Celik1, Tuba Kayman2, Fatih Buyuk1
1Department of Microbiology, Faculty of Veterinary Medicine, Kafkas University, Kars, Turkey.
Microbial pathogenesis
|July 24, 2023
概括
血病是一种动物传播的疾病. 这项研究确定了人类,牛和羊的布鲁塞拉物种,在人类和羊中发现了B. melitensis,在牛中发现了B. abortus. 抗生素敏感性测试显示, جنت米辛和西普罗夫洛克萨的有效性很高.
科学领域:
- 兽医微生物学 兽医微生物学
- 动物传播疾病 动物传播疾病
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 兽病是一种重要的动物传染病,具有广泛的宿主范围,但具有特定的偏好.
- 人类菌病例直接反映了动物感染的流行程度.
- 了解布鲁塞拉物种的分布和抗生素敏感性对于控制至关重要.
研究的目的:
- 通过使用布鲁斯梯子PCR从人类,牛和绵羊分离物中识别布鲁塞拉物种.
- 为了确定这些布鲁塞拉分离物的抗生素敏感性概况.
- 为了研究布鲁塞拉物种潜在的宿主交换行为.
主要方法:
- 从各种来源收集和加工了192个布鲁塞拉分离物.
- 使用布鲁斯梯子PCR识别布鲁塞拉物种.
- 通过梯度扩散方法 (E-test) 进行抗生素敏感性测试.
主要成果:
- 所有57个人类分离物被确定为Brucella melitensis.
- 牛分离主要是B. abortus (82.9%),有一些B. melitensis (17.1%).
- 绵羊分离的主要是B. melitensis (90.8%),有一些B. abortus (9.2%).
- 布鲁塞拉梅利坦尼斯 (Brucella melitensis) 显示出比B. abortus更高的初级宿主变化行为 (1.9倍).
- 对 جنت米辛和西普罗夫洛克萨的敏感性高 (100%);对塞福拉的敏感性低 (26%) .
- 一个B. abortus分离体表现出三重药物耐药性 (cefoperazone, rifampicin,trimethoprim/sulfamethoxazole). 这种抗药性是由于B.
结论:
- 在这项研究中,brucella melitensis是人类病的主要原因.
- 在布鲁塞拉物种中观察到的宿主偏好转变需要重新评估根除策略.
- 目前的抗生素敏感性数据支持使用珍塔素和西普罗夫洛克萨,但耐药性模式需要监测.
- 由于宿主-病原体动态的变化,更新疫苗配方可能是必要的.
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