Featured Research

from universities, journals, and other organizations

Seasonal changes in outpatient antibiotic use significantly alter seasonal patterns of drug resistance

Date:
July 2, 2012
Source:
Infectious Diseases Society of America
Summary:
A new study shows how seasonal changes in outpatient antibiotic use -- retail sales of antibiotics typically get a boost during the winter -- can significantly alter seasonal patterns of drug resistance. The findings suggest that hospital campaigns to reduce inappropriate antibiotic use should be coordinated with efforts in the broader community if they are to be most effective.

A new study published in Clinical Infectious Diseases and available online shows how seasonal changes in outpatient antibiotic use -- retail sales of antibiotics typically get a boost during the winter -- can significantly alter seasonal patterns of drug resistance. The findings suggest that hospital campaigns to reduce inappropriate antibiotic use should be coordinated with efforts in the broader community if they are to be most effective.

In the study, Dr. Ramanan Laxminarayan, director of the Center for Disease Dynamics, Economics and Policy in Washington, D.C., and research scholar at Princeton University, and Eili Klein and Lova Sun at Princeton University show a link between changing rates of antibiotic consumption and resistance. They also suggest that restrictions imposed by hospitals may be undermined if usage at the community level is not addressed. "Considering that approximately 260 million antibiotic prescriptions are filled each year," they noted, "individual hospitals' efforts to restrict antibiotic usage are unlikely to have a large effect on certain pathogens unless complemented by and coordinated with campaigns at the community level."

Dr. Laxminarayan and his colleagues demonstrate that highly seasonal temporal relationships exist between some combinations of prescriptions among five classes of antibiotics (representing almost three-quarters of yearly antibiotic prescriptions) and resistance levels of two bacteria, Escherichia coli and methicillin-resistant Staphylococcus aureus (MRSA). Specifically, resistant E. coli and MRSA were significantly correlated with lagged antibiotic prescriptions for drugs that were highly prescribed, but uncorrelated with antibiotics that were not used as often.

To analyze prescribing patterns, the researchers relied on data collected from U.S. retail pharmacies from 1999 to 2007. Information about resistance came from a repository of test results collected from more than 300 laboratories spread throughout the country. In nearly all cases analyzed, a one-month lag was found between high antibiotic prescription levels and the prevalence of resistant E. coli and S. aureus.

Because the sheer quantity of antibiotic consumption is still the main driver of resistance, Dr. Laxminarayan said, "decreasing inappropriate use through flu vaccinations and better education of both patients and physicians on when to use antibiotics will have an immediate impact." The United States still uses more antibiotics per capita than most comparable countries, and "there is room to lower prescribing without compromising on outcomes." The researchers plan future studies to examine other combinations of antibiotics and resistant bacteria, and to specify subpopulations of the U.S.


Story Source:

The above story is based on materials provided by Infectious Diseases Society of America. Note: Materials may be edited for content and length.


Journal Reference:

  1. Lova Sun, Eili Y. Klein and Ramanan Laxminarayan. Seasonality and Temporal Correlation between Community Antibiotic Use and Resistance in the United States. Clinical Infectious Diseases, 2012 DOI: 10.1093/cid/cis509

Cite This Page:

Infectious Diseases Society of America. "Seasonal changes in outpatient antibiotic use significantly alter seasonal patterns of drug resistance." ScienceDaily. ScienceDaily, 2 July 2012. <www.sciencedaily.com/releases/2012/07/120702134734.htm>.
Infectious Diseases Society of America. (2012, July 2). Seasonal changes in outpatient antibiotic use significantly alter seasonal patterns of drug resistance. ScienceDaily. Retrieved August 30, 2014 from www.sciencedaily.com/releases/2012/07/120702134734.htm
Infectious Diseases Society of America. "Seasonal changes in outpatient antibiotic use significantly alter seasonal patterns of drug resistance." ScienceDaily. www.sciencedaily.com/releases/2012/07/120702134734.htm (accessed August 30, 2014).

Share This




More Plants & Animals News

Saturday, August 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Raw: Australian Sheep Gets Long Overdue Haircut

Raw: Australian Sheep Gets Long Overdue Haircut

AP (Aug. 28, 2014) Hoping to break the record for world's wooliest, Shaun the sheep came up 10 pounds shy with his fleece weighing over 50 pounds after being shorn for the first time in years. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Minds Blown: Scientists Develop Fish That Walk On Land

Minds Blown: Scientists Develop Fish That Walk On Land

Newsy (Aug. 28, 2014) Canadian scientists looking into the very first land animals took a fish out of water and forced it to walk. Video provided by Newsy
Powered by NewsLook.com
Huge Ancient Wine Cellar Found In Israel

Huge Ancient Wine Cellar Found In Israel

Newsy (Aug. 28, 2014) An international team uncovered a large ancient wine celler that likely belonged to a Cannonite ruler. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins