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Antibiotic resistance lasts up to a year, primary care patient study finds

Date:
May 21, 2010
Source:
BMJ-British Medical Journal
Summary:
Patients prescribed antibiotics in primary care may develop a resistance that lasts up to 12 months, according to research published on bmj.com today.
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FULL STORY

Patients prescribed antibiotics in primary care may develop a resistance that lasts up to 12 months, according to research published online in the British Medical Journal.

It is widely recognised that resistance to antibiotics is a major threat to public health. However, according to the researchers, this is not seen by most clinicians or patients as a reason to refrain from using them, with many regarding the problem as minimal.

To address a lack of systematic reviews in the area, the authors analysed 24 existing studies of resistance in individual patients prescribed antibiotics in primary care, mainly for respiratory or urinary infections.

They found strong evidence that individuals prescribed an antibiotic in primary care for a respiratory or urinary infection develop a resistance. The effect is greatest in the month immediately after treatment, but may last for up to a year, and this residual effect may be a driver for high levels of resistance in the community.

The review provides the evidence needed to quantify the link between individual prescribing decisions and the problem of resistance, the authors conclude. They say it highlights that the only way to avoid the "vicious cycle of resistance" is to avoid the initial use of antibiotics wherever possible. However, they also call for more clinical trials to strengthen the evidence base.

In an accompanying analysis, two specialists in economics and health policy argue that new antibiotics to tackle multi-drug resistant bacteria are much needed. They show how financial incentives might be used to persuade drug companies to develop new antibiotics, and suggest that such action needs to be accompanied by efforts to tackle overuse of antibiotics, which is currently fuelling the spread of resistant bacteria.

These views are reiterated in an editorial by three international experts who call for economic strategies to bring new drugs to market, and to conserve existing antibacterials. "Nothing less than the future of medicine, from organ transplants to chemotherapy, is at stake, and there will be no second chances," they conclude.


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. C. Costelloe, C. Metcalfe, A. Lovering, D. Mant, A. D. Hay. Effect of antibiotic prescribing in primary care on antimicrobial resistance in individual patients: systematic review and meta-analysis. BMJ, 2010; 340 (may18 2): c2096 DOI: 10.1136/bmj.c2096

Cite This Page:

BMJ-British Medical Journal. "Antibiotic resistance lasts up to a year, primary care patient study finds." ScienceDaily. ScienceDaily, 21 May 2010. <www.sciencedaily.com/releases/2010/05/100518230524.htm>.
BMJ-British Medical Journal. (2010, May 21). Antibiotic resistance lasts up to a year, primary care patient study finds. ScienceDaily. Retrieved April 27, 2015 from www.sciencedaily.com/releases/2010/05/100518230524.htm
BMJ-British Medical Journal. "Antibiotic resistance lasts up to a year, primary care patient study finds." ScienceDaily. www.sciencedaily.com/releases/2010/05/100518230524.htm (accessed April 27, 2015).

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