基因组
排名(信息检索)
废水
抗生素
抗生素耐药性
基因
抗药性
抗性(生态学)
生物
生物技术
风险分析(工程)
微生物学
环境科学
计算生物学
医学
遗传学
环境工程
生态学
计算机科学
情报检索
作者
Xin-Yi Shuai,Zhenchao Zhou,Lin Zhu,Chioma Rita Achi,Zejun Lin,Zhe Liu,Yu X,Jing Zhou,Yanhan Lin,Hong Chen
标识
DOI:10.1016/j.jhazmat.2024.133790
摘要
Antimicrobial resistance poses a serious threat to human health. Hospital wastewater system (HWS) is an important source of antibiotic resistance genes (ARGs). The risk of ARGs in HWS is still an under-researched area. In this study, we collected publicly metagenomic datasets of 71 hospital wastewater samples from 18 hospitals in 13 cities. A total of 9838 contigs were identified to carry 383 unique ARGs across all samples, of which 2946 contigs were plasmid-like sequences. Concurrently, the primary hosts of ARGs within HWS were found to be Escherichia coli and Klebsiella pneumoniae. To further evaluate the risk of each ARG subtype, we proposed a risk assessment framework based on the importance of corresponding antibiotics as defined by the WHO and three other indicators - ARG abundance (A), mobility (M), and host pathogenicity (P). Ninety ARGs were identified as R1 ARGs having high-risk scores, which meant having a high abundance, high mobility, and carried by pathogens in HWS. Furthermore, 25% to 49% of genomes from critically important pathogens accessed from NCBI carried R1 ARGs. A significantly higher number of R1 ARGs was carried by pathogens in the effluents of municipal wastewater treatment plants from NCBI, highlighting the role of R1 ARGS in accelerating health and environmental risks. Antibiotic resistance genes (ARG) as emergence contamination have spread widely in the environment and threat to human health. Hospital wastewater system (HWS) is an important source of ARGs. The immense diversity of ARGs in HWS makes it difficult to monitor and control. A reasonable risk assessment of different ARG subtypes in HWS should be concerned. This study provides a priority monitoring list of ARGs in hospital wastewater. This list could be used as a reference for controlling antimicrobial resistance in hospital wastewater in the future.
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