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Source: COVID-19 Treatments  Aug 25, 2020  3 years ago
COVID-19 Treatments: UK Experts Warns That Excessive Use Of Antibiotics In Treatment Protocols Could Lead To Antimicrobial Resistance
COVID-19 Treatments: UK Experts Warns That Excessive Use Of Antibiotics In Treatment Protocols Could Lead To Antimicrobial Resistance
Source: COVID-19 Treatments  Aug 25, 2020  3 years ago
COVID-19 Treatments: A new British study suggests that the use of antibiotics in individuals with COVID-19 could result in increased resistance to the drugs' benefits among the wider population.

The study findings were published in the Journal of Antimicrobial Chemotherapy.
The study found that patients hospitalized as a result of the SARS0CoV-2 corona virus are being given a combination of medications to prevent possible secondary bacterial infections.
Interestingly however, research by the University of Plymouth and Royal Cornwall Hospital Trust suggests their increased use during the pandemic could be placing an additional burden on waste water treatment works.
The scientists say this could lead to raised levels of antibiotics within the UK's rivers or coastal waters which may in turn result in an increase in antimicrobial resistance (AMR), where bacteria become resistant to the action of antibiotics.
They warned that this would be particularly acute in receiving waters from waste water treatment works serving large hospitals, or emergency 'Nightingale' hospitals, where there is a concentration of COVID-19 patients.
The study findings are based on reports that up to 95% of COVID-19 inpatients are being prescribed antibiotics as part of their treatment, and concerns that such a large-scale drug administration could have wider environmental implications.
Dr Sean Comber, Professor of Environmental Chemistry in Plymouth and the article's lead author told Thailand Medical News, "COVID-19 has had an impact on almost every aspect of our lives. But this study shows its legacy could be felt long after the current pandemic has been brought under control. From our previous research, we know that significant quantities of commonly prescribed drugs do pass through treatment works and into our water courses. By developing a greater understanding of their effects, we can potentially inform future decisions on prescribing during pandemics, but also on the location of emergency hospitals and wider drug and waste management."
Interestingly, the COVID-19 guidance issued by the National Institute for Health and Care Excellence (NICE) suggests patients with COVID-19 should be treated with doxycycline and either amoxicillin or a combination of other medications if a bacterial infection is suspected, but to withhold or stop antibiotics if a bacterial infection is unlikely.
Consultant Pharmacist at the Royal Cornwall Hospital, Neil Powell said, "Common with other hospitalized patients in the UK, and other countries, the majority of our patients with COVID symptoms were prescribed antibiotics because it is very difficult to know whether a patient presenting with symptoms of COVID has an overlying bacterial infection or not. We did a lot of work to try and identify those patients who were unlikely to have a bacterial infection complicating their viral COVID infections in an attempt to reduce the amount of antibiotic exposure to our patients and consequently the environment."
  r /> This new study combined patient numbers for UK emergency hospitals set up temporarily around the country with waste water treatment work capacity and available river water dilution serving the emergency hospital and associated town.
Utilizing available environmental impact data and modelling tools developed by the UK water industry, it focussed on one UK emergency hospital - Harrogate, geared up to treat around 500 people and showed the risks posed by doxycycline was low, assuming the hospital was at full capacity.
Dr Tom Hutchinson, Professor of Environment and Health at the University and a co-author on the research, added, "This is a comprehensive environmental safety assessment which addresses potential risks to fish populations and the food webs they depend on. The data for amoxicillin indicated that while there was little threat of direct impacts on fish populations and other wildlife, there is a potential environmental concern for selection of AMR if at 100% capacity."
Typically Amoxicillin is used to treat everything from pneumonia and throat infections to skin and ear infections.
Dr Mathew Upton, Professor of Medical Microbiology at the University and a co-author on the research, added, "Antibiotics underpin all of modern medicine, but AMR is an issue that could impact millions of lives in the decades to come. Currently, the COVID-19 pandemic is causing immense suffering and loss of life across the globe, but AMR has been and will remain one of the most significant threats to global human health. We conducted this study so that we can begin to understand the wider impact of global pandemics on human health. It is clear that mass prescribing of antibiotics will lead to increased levels in the environment and we know this can select for resistant bacteria. Studies like this are essential so that we can plan how to guide antibiotic prescription in future pandemics."
In some other countries, doctors and hospitals merely start the patient on antibiotics with assessing to see whether there is really a need.
Experts are advocating that patients be tested for the possibility of having secondary bacterial and only then administering antibiotics to them. Though the process of constant testing and monitoring might be more labor, time and cost extensive, it might be a better solution to prevent AMR in the future.
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