Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Testing of seafood imported into the US is inadequate

10.11.2011
Finfish, shrimp, and seafood products are some of the most widely traded foods and about 85 percent of seafood consumed in the U.S. is imported.

A new study by researchers from the Johns Hopkins Center for a Livable Future at the Bloomberg School of Public Health shows that testing of imported seafood by the U.S. Food and Drug Administration (FDA) is inadequate for confirming its safety or identifying risks.

The findings, published this month in Environmental Science and Technology, highlight deficiencies in inspection programs for imported seafood across four of the world's largest importing bodies and show which types of aquatic animals, and from which countries, are most often failing inspection. The study identified a lack of inspection in the U.S. compared to its peers: only 2 percent of all seafood imported into the U.S. is tested for contamination, while the European Union, Japan and Canada inspect as much as 50 percent, 18 percent, and 15 percent of certain imported seafood products. When testing in the U.S. does occur, residues of drugs used in aquaculture, or "fish farms," are sometimes found; above certain concentrations, these drugs are harmful to humans.

David Love, PhD, lead author of the study, and colleagues at the Johns Hopkins Center for a Livable Future, acquired data on seafood inspection programs from governmental websites and from direct queries to governmental bodies. They analyzed the number of violations of drug residue standards as a function of species of aquatic animal, exporting country, drug type, import volume and concentration of residue.

Their findings indicate there is an insufficient body of data for evaluating the health risks associated with drug residues in U.S. seafood imports. "Data made accessible to the public by the FDA precludes estimation of exposures to veterinary drugs incurred by the U.S. population," said Keeve Nachman, PhD, a study co-author. Researchers encountered a lack of transparency in U.S. testing protocol and policy. One example of the FDA's opacity is that its public records do not specify when fish pass inspection or whether testing was performed on random samples or targeted samples; these distinctions are critical to accurate assessment of the prevalence of the drug residues.

Love and colleagues' results showed that the FDA tests for 13 types of drug residues, in contrast to inspection agencies in Europe and Japan that test for 34 and 27 drugs, respectively. This discrepancy suggests that seafood producers can use many drugs for which the U.S. does not screen. Based on the authors' findings of drug residues, it can be surmised that veterinary drugs are continuing to be used in aquaculture from developing countries, which can lead to adverse health consequences, including the development of antibiotic-resistant bacteria on fish farms and their spread in seafood products.

Imports to the U.S., E.U., Canada and Japan with the highest frequency of drug violations were shrimp or prawns, eel, crabs, catfish or pangasius, tilapia and salmon. Vietnam, China, Thailand, Indonesia, Taiwan, India, and Malaysia were identified as the exporters to the U.S., E.U., Canada and Japan with the most drug violations.

According to Love, "Consumers should be familiar with the country-of-origin and whether the animal was wild-caught or farm-raised." Love admits, "Fortunately, this information has been listed on all raw or lightly processed seafood products in grocery stores since 2005, following the Country of Origin Labeling (COOL) law."

"Imported seafood may carry risks in terms of food safety because the FDA does not have the resources to proactively and regularly inspect foreign facilities, and it relies on product testing as a last resort," said Love. To minimize the risks of seafood imports and to raise U.S. testing standards to match those of other countries, the authors recommend that the FDA budget be expanded to allow for more exhaustive testing and hiring of more inspectors.

The paper, "Veterinary drug residues in seafood inspected by the European Union, United States, Canada, and Japan from 2000 to 2009," was published online ahead of print in Environmental Science and Technology. Authors are David Love, Sarah Rodman, Roni Neff, and Keeve Nachman. Funding for the study was provided by the Johns Hopkins Center for a Livable Future.

Tim Parsons | EurekAlert!
Further information:
http://www.jhsph.edu

More articles from Studies and Analyses:

nachricht New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

nachricht Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>