Navigation Links
Lesser-known Escherichia coli types targeted in food safety research
Date:4/12/2011

This release is available in Spanish.

Almost everyone knows about Escherichia coli O157:H7, the culprit behind many headline-making outbreaks of foodborne illness in the United States. But the lesser-known relatives of this pathogenic microbe are increasingly of concern to food safety scientists.

That's according to U.S. Department of Agriculture (USDA) microbiologist and research leader Pina M. Fratamico. Researchers such as Fratamico, along with food safety regulators, public health officials and food producers in the United States and abroad, want to know more about these less-studied pathogens.

In the past few years, a half-dozen of these emerging E. coli species, also called "serogroups," have come to be known among food safety specialists as "the Big Six," namely E. coli O26, O45, O103, O111, O121, and O145.

Fratamico and her colleagues are sorting out "who's who" among these related pathogens so that the microbes can be identified and detected quickly and reliably. The researchers are doing that by uncovering telltale clues in the microbes' genetic makeup.

Building upon this work, Fratamico and her Agricultural Research Service (ARS), university, and industry collaborators have developed gene-based PCR (polymerase chain reaction) assays for each of the Big Six. With further work, the assays might be presented as user-friendly test kits for use by regulatory agencies and others. Foodmakers, for example, might be able to use such kits for in-house quality control, while public health agencies might rely on them when processing specimens from patients hospitalized with foodborne illness.

Analyses of test results might help researchers determine whether certain strains of Big Six E. coli species cause more illness than E. coli O157:H7 does, and if so, why.


'/>"/>

Contact: Marcia Wood
marcia.wood@ars.usda.gov
301-504-1662
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

Page: 1

Related biology news :

1. Escherichia coli bacteria transferring between humans and mountain gorillas
2. Different origins discovered for medulloblastoma tumor subtypes
3. Metabolism models may explain why Alzheimers disease kills some neuron types first
4. Same types of cell respond differently to stimulus, Stanford study shows
5. Researchers discover genetic link between both types of ALS
6. Production of biofuels could benefit by controlling the types of cells that develop in plants
7. Duffy-negative blood types no longer protected from P. Vivax malaria
8. Scientists identify common HPV genotypes in northern India, encourage vaccination
9. Molecular typesetting -- proofreading without a proofreader
10. Recruitment of reproductive features into other cell types may underlie extended lifespan in animals
11. Scientists uncover mode of action of enzyme linked with several types of cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/18/2017)... April 18, 2017  Socionext Inc., a global expert in SoC-based ... edge server, the M820, which features the company,s hybrid codec technology. ... by Tera Probe, Inc., will be showcased during the upcoming Medtec ... show at the Las Vegas Convention Center ... Click here ...
(Date:4/13/2017)... , April 13, 2017 According to a new ... Authentication, Identity Analytics, Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, ... IAM Market is expected to grow from USD 14.30 Billion in 2017 ... (CAGR) of 17.3%. ... MarketsandMarkets Logo ...
(Date:4/11/2017)... 2017 No two people are believed ... New York University Tandon School of Engineering and ... that partial similarities between prints are common enough ... phones and other electronic devices can be more ... lies in the fact that fingerprint-based authentication systems ...
Breaking Biology News(10 mins):
(Date:9/19/2017)... ... September 19, 2017 , ... Avomeen Analytical Services, an ... its 2017 Science Student Award. The scholarship program is dedicated to helping those ... defray the costs of obtaining their science education. , Avomeen began the annual ...
(Date:9/18/2017)... ... 2017 , ... Transportable biomass conversion facilities and the economics ... the topic of a September 27 webinar hosted by the Waste ... biomass conversion facilities for producing biochar, briquettes, and torrefied wood, biomass supply chains ...
(Date:9/17/2017)... ... 2017 , ... GeneOne Life Science, Inc. announces that it ... (KMFDS) for an Investigational New Drug application for a Phase I/IIa study of ... study in Korea represents the second clinical trial for GLS-5300. , A ...
(Date:9/14/2017)... , ... September 14, 2017 ... ... the launch of its CliniControlâ„¢ (CC) product portfolio, clinically-relevant starting and ancillary ... translation of human Mesenchymal Stem/Stromal Cell (hMSC)-based therapies. The CliniControl product portfolio ...
Breaking Biology Technology: