Featured Research

from universities, journals, and other organizations

Food-trade network vulnerable to fast spread of contaminants

Date:
June 7, 2012
Source:
University of Notre Dame
Summary:
Physicists and food science experts have recently published a rigorous analysis of the international food-trade network that shows the network's vulnerability to the fast spread of contaminants as well as the correlation between known food poisoning outbreaks and the centrality of countries on the network.

Scientists have completed a rigorous analysis of the international food-trade network that shows the network's vulnerability to the fast spread of contaminants as well as the correlation between known food poisoning outbreaks and the centrality of countries on the network.
Credit: © Franck Boston / Fotolia

University of Notre Dame network physicists Mária Ercsey-Ravasz and Zoltán Toroczkai of the Interdisciplinary Center for Network Science and Applications, in collaboration with food science experts, have recently published a rigorous analysis of the international food-trade network that shows the network's vulnerability to the fast spread of contaminants as well as the correlation between known food poisoning outbreaks and the centrality of countries on the network.

Together with food science experts József Baranyi, from the Institute of Food Research in the U.K., and Zoltán Lakner, of Corvinus University in Budapest, Ercsey-Ravasz and Toroczkai recently published their results in the journal PLoS ONE.

As the world's population climbs past 7 billion, the sustainable production and distribution of food is balanced against the need to ensure its chemical and microbiological safety. The new paper maps the international agro-food trade network (IFTN) -- a highly complex and heterogeneous system formed around a core group of seven countries, each trading with more than 77 percent of the world's nations. Since any two countries in the IFTN have only two degrees of separation on the network, the IFTN is capable of spreading a foodborne contaminant very efficiently. It also tends to mask the contaminant's origins once the system is compromised, since so many network paths run through the central nodes.

By 2030, food demand is expected to increase by 50 percent. Global food transport has been increasing at an exponential rate since the 1960s -- faster than food production itself. As the system grows, so does pressure on regulation and surveillance organizations to track contaminants and prevent deadly outbreaks, such as the 2011 events in the U.S. (Listeria monocytogenes_) and Germany (_Escherichia coli).

While the paper does not predict an increase in food poisoning cases, it does predict significant delays with serious potential consequences in the identification of the outbreaks' sources -- calling for an interdisciplinary and incentivized approach to the understanding of the IFTN that will build on its identification of the network's critical spots


Story Source:

The above story is based on materials provided by University of Notre Dame. Note: Materials may be edited for content and length.


Journal Reference:

  1. Mária Ercsey-Ravasz, Zoltán Toroczkai, Zoltán Lakner, József Baranyi. Complexity of the International Agro-Food Trade Network and Its Impact on Food Safety. PLoS ONE, 2012; 7 (5): e37810 DOI: 10.1371/journal.pone.0037810

Cite This Page:

University of Notre Dame. "Food-trade network vulnerable to fast spread of contaminants." ScienceDaily. ScienceDaily, 7 June 2012. <www.sciencedaily.com/releases/2012/06/120607180241.htm>.
University of Notre Dame. (2012, June 7). Food-trade network vulnerable to fast spread of contaminants. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2012/06/120607180241.htm
University of Notre Dame. "Food-trade network vulnerable to fast spread of contaminants." ScienceDaily. www.sciencedaily.com/releases/2012/06/120607180241.htm (accessed October 20, 2014).

Share This



More Health & Medicine News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Microneedle Patch Promises Painless Pricks

Microneedle Patch Promises Painless Pricks

Reuters - Innovations Video Online (Oct. 18, 2014) — Researchers at The National University of Singapore have invented a new microneedle patch that could offer a faster and less painful delivery of drugs such as insulin and painkillers. Video provided by Reuters
Powered by NewsLook.com
Raw: Nurse Nina Pham Arrives in Maryland

Raw: Nurse Nina Pham Arrives in Maryland

AP (Oct. 17, 2014) — The first nurse to be diagnosed with Ebola at a Dallas hospital walked down the stairs of an executive jet into an ambulance at an airport in Frederick, Maryland, on Thursday. Pham will be treated at the National Institutes of Health. (Oct. 16) Video provided by AP
Powered by NewsLook.com
Raw: Cruise Ship Returns to US Over Ebola Fears

Raw: Cruise Ship Returns to US Over Ebola Fears

AP (Oct. 17, 2014) — A Caribbean cruise ship carrying a Dallas health care worker who is being monitored for signs of the Ebola virus is heading back to Texas, US, after being refused permission to dock in Cozumel, Mexico. (Oct. 17) Video provided by AP
Powered by NewsLook.com
Spanish Govt: Four Suspected Ebola Cases in Spain Test Negative

Spanish Govt: Four Suspected Ebola Cases in Spain Test Negative

AFP (Oct. 17, 2014) — All four suspected Ebola cases admitted to hospitals in Spain on Thursday have tested negative for the deadly virus in a first round of tests, the government said Friday. Duration: 00:55 Video provided by AFP
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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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