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Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

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Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
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The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
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Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
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Infection01:20

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When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
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The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
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Antimicrobial resistance and COVID-19: Intersections and implications.

Gwenan M Knight1,2,3,4, Rebecca E Glover1,5, C Finn McQuaid1,2,3,4

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Antimicrobial resistance (AMR) is a growing concern. The COVID-19 pandemic impacts AMR through changes in antimicrobial use and healthcare, with uncertain long-term effects on this global health threat.

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Area of Science:

  • Public Health
  • Infectious Diseases
  • Microbiology

Background:

  • Antimicrobial resistance (AMR) was a major global health priority before the COVID-19 pandemic.
  • The pandemic has altered healthcare systems, antimicrobial usage, and infection prevention strategies.
  • These changes create a complex and evolving landscape for addressing AMR.

Purpose of the Study:

  • To analyze the impact of COVID-19-related changes on the emergence, transmission, and burden of AMR.
  • To understand the short-term and potential long-term effects of the pandemic on AMR dynamics.
  • To inform strategies for preparedness and response to interconnected public health challenges.

Main Methods:

  • Analysis of changes in antimicrobial usage patterns during the COVID-19 pandemic.
  • Evaluation of shifts in infection prevention and control measures.
  • Assessment of health system modifications and their influence on AMR.

Main Results:

  • Short-term reductions in AMR pathogen selection and spread may occur due to increased hygiene and decreased travel/procedures.
  • Conversely, increased antibiotic use amid healthcare disruptions could exacerbate AMR.
  • The overall dynamics of AMR during the pandemic remain uncertain.

Conclusions:

  • The COVID-19 pandemic presents both potential short-term benefits and long-term risks for AMR.
  • Continued global surveillance and research are crucial to understand and manage AMR in the evolving healthcare environment.
  • A coordinated global perspective is essential for effective preparedness and response to intersecting health crises.