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The Scourge of Antibiotic Resistance: The Important Role of the Environment

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TLDR
The rapid evolution and spread of "new" antibiotic resistance genes has been enhanced by modern human activity and its influence on the environmental resistome, which highlights the importance of including the role of the environmental vectors, such as bacterial genetic diversity within soil and water, in resistance risk management.
Abstract
Antibiotic resistance and associated genes are ubiquitous and ancient, with most genes that encode resistance in human pathogens having originated in bacteria from the natural environment (eg, β-lactamases and fluoroquinolones resistance genes, such as qnr). The rapid evolution and spread of "new" antibiotic resistance genes has been enhanced by modern human activity and its influence on the environmental resistome. This highlights the importance of including the role of the environmental vectors, such as bacterial genetic diversity within soil and water, in resistance risk management. We need to take more steps to decrease the spread of resistance genes in environmental bacteria into human pathogens, to decrease the spread of resistant bacteria to people and animals via foodstuffs, wastes and water, and to minimize the levels of antibiotics and antibiotic-resistant bacteria introduced into the environment. Reducing this risk must include improved management of waste containing antibiotic residues and antibiotic-resistant microorganisms.

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Citations
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Journal ArticleDOI

Prevalence of Antibiotic-Resistant Fecal Escherichia coli Isolates from Penned Broiler and Scavenging Local Chickens in Arusha, Tanzania.

TL;DR: The higher prevalence of antibiotic-resistant E. coli from broiler chickens correlated with the reported therapeutic and prophylactic use of antibiotics in this poultry population and it is suggested that improved biosecurity measures and increased vaccination efforts would reduce reliance on antibiotics by these households.
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Metagenomic insights into the antibiotic resistome of mangrove sediments and their association to socioeconomic status.

TL;DR: Analyzing the resistome of mangrove sediments from Brazil, China, Saudi Arabia, India, and Malaysia showed that the socioeconomic factors strongly determine the antibiotic resistome in the mangroves.
Journal ArticleDOI

A survey of extended-spectrum beta-lactamase-producing Enterobacteriaceae in urban wetlands in southwestern Nigeria as a step towards generating prevalence maps of antimicrobial resistance

TL;DR: The results indicate that contamination of these urban aquatic ecosystems with clinically relevant antibiotic resistant bacteria is substantial in some areas and measures should be put in place to mitigate the propagation of clinically relevant antimicrobial resistance within the Nigerian aquatic ecosystems.
Journal ArticleDOI

Current antimicrobial use in farm animals in the Republic of Ireland.

TL;DR: The progress that has been made regarding data collection in the intensive production sectors such as pigs and poultry is highlighted, however, it is clear there are significant knowledge gaps in less intensive industries such as dairy, beef and sheep.
Journal ArticleDOI

Distribution and Clonal Diversity of Staphylococcus aureus and Other Staphylococci in Surface Waters: Detection of ST425-t742 and ST130-t843 mecC-Positive MRSA Strains.

TL;DR: In this article, the presence of antimicrobial resistance genes and virulence factors as well as the genetic lineages of all Staphylococcus aureus isolates were recovered from water samples collected from 78 surface waters, including rivers, streams, irrigation ditches, dams, lakes and fountains.
References
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Journal ArticleDOI

Antibiotics in the aquatic environment - A review - Part II

TL;DR: This review brings up important questions that are still open, and addresses some significant issues which must be tackled in the future for a better understanding of the behavior of antibiotics in the environment, as well as the risks associated with their occurrence.
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Antibiotic resistance is ancient

TL;DR: Target metagenomic analyses of rigorously authenticated ancient DNA from 30,000-year-old Beringian permafrost sediments are reported and show conclusively that antibiotic resistance is a natural phenomenon that predates the modern selective pressure of clinical antibiotic use.
BookDOI

Water for Food Water for Life : A Comprehensive Assessment of Water Management in Agriculture

TL;DR: Molden et al. as discussed by the authors presented a comprehensive assessment of water management in agriculture, focusing on water for food, water for life, and water for the future of agriculture.
Journal ArticleDOI

Antibiotics and antibiotic resistance in water environments

TL;DR: Methods to reduce resistant bacterial load in wastewaters, and the amount of antimicrobial agents, in most cases originated in hospitals and farms, include optimization of disinfection procedures and management of wastewater and manure.
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