在印度的乳制品环境中,基础设施和运营与抗生素耐药性潜力的关联
Harshita Singh1, Kenyum Bagra1, Sourabh Dixit1
1Department of Civil Engineering, Indian Institute of Technology, Roorkee 247667, India.
Preventive veterinary medicine
|March 8, 2025
概括
奶牛养殖场的基础设施和运营对抗生素耐药性产生重大影响. 农场工人,特别是在肥修改的土壤中,面临着更高的抗生素耐药性基因 (ARG) 暴露风险.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 抗生素耐药性是一个日益严重的全球性问题,特别是在发展中国家的乳制品行业.
- 乳制品农场不适当使用抗生素有助于环境污染和耐药性的共同选择.
- 影响抗生素耐药性水平和农场工人在乳制品环境中的暴露风险的因素在很大程度上是未知的.
研究的目的:
- 调查乳制品农场基础设施/运营与印度抗生素耐药性潜力之间的联系.
- 评估农场工人接触抗生素耐药性基因 (ARG) 的风险.
- 确定设计干预措施的关键因素,以减轻乳制品环境中的抗生素耐药性.
主要方法:
- 在印度德拉敦的16个乳制品农场采样了不同季节的样本.
- 收集的便,,废水和土壤样本.
- 使用qPCR量化了6个ARG (sul1, sul2, parC, mcr5, ermF, tetW) 和intI1 (整合酶基因).
主要成果:
- 农场的基础设施 (通风,地板类型) 和操作 (规模,兽医咨询) 与ARG水平有显著的相关性.
- 增加通风和气候暴露与肥料中较高的 sul2 和 parC 含量有关.
- 在未经兽医咨询的情况下服用抗生素导致了较低的intI1, sul2和tetW水平.
- 肥料修改土壤的相对ARG含量最高,其次是废水,和便.
- 与intI1相关的ARG,表明水平基因转移潜力.
- 经过改的农田的农业工人比处理便的乳制品工人暴露的风险更高.
结论:
- 奶牛场的基础设施和运营实践是抗生素耐药性潜力的重要决定因素.
- 农场工人接触ARG的程度因处理方式和环境污染而有所不同.
- 研究结果为有针对性的干预提供了基础,以减少乳制品环境中的抗生素耐药性,并保护公共健康.
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