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Feng Y, Qin Z, Geng Y, Huang X, Ouyang P, Chen D, Guo H, Deng H, Lai W, Zuo Z, Fang J, Zhong Z. Regional analysis of the characteristics and potential risks of bacterial pathogen resistance under high-pressure antibiotic application. J Environ Manage 2022; 317:115481. [PMID: 35751278 DOI: 10.1016/j.jenvman.2022.115481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 05/24/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
The study aimed to perform a regional investigation of the antibiotic resistance characteristics (ARCHs) of zoonotic pathogens in environments of high antibiotic pressure to observe the future trend of antibiotic application. In this study, an ARCH analysis of the animal pathogens was conducted in the Sichuan Basin with an area of about 180,000 km2 and an estimated high antibiotic application exceeding 2000 tons. A total of 388 bacterial strains from nine species were isolated during 2013-2021. The results showed a dynamic change in the pathogen resistance in the Sichuan Basin with no apparent temporal trend. Fifty-two of 54 antibiotic resistance phenotypes (ARPs) and 180/218 antibiotic resistance genes (ARGs) were detected in this region. The antibiotic resistance in the classification of β-lactam, sulfanilamide, and tetracycline had a relatively high detective rate, with 33-58% of ARPs and about 29.7% of ARGs. The isolates from terrestrial animals generally had higher ARPs and ARGs than aquatic animals. Most pathogens carried 5-11 ARPs, and each isolate carried 19.7 ARGs on average. Our result showed that there was a complicated accumulation of ARGs under high antibiotic pressure. Besides, the unique strain in the Sichuan Basin did not show higher resistance rates compared with the World Health Organization data, possibly due to fitness cost. However, the complex ARCH under high pressure still deserves attention to prevent the emergence of super-resistant bacteria.
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Affiliation(s)
- Yang Feng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Zhenyang Qin
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
| | - Xiaoli Huang
- Department of Aquaculture, College of Animal Science & Technology, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Ping Ouyang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Defang Chen
- Department of Aquaculture, College of Animal Science & Technology, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Weimin Lai
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Zhijun Zhong
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
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