Evidence for the benefits of food chain interventions on E. coli O157:H7/NM prevalence in retail ground beef and human disease incidence: A success story

Pollari, Frank; Christidis, Tanya; Pintar, Katarina; Nesbitt, Andrea; Farber, Jeff; Lavoie, Marie‐Claude; Gill, Alexander; Kirsch, Penelope; Johnson, Roger P.

doi:10.17269/cjph.108.5655

Cited by 21 publications

(16 citation statements)

References 30 publications

(33 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is consistent with the decline in the incidence of O157 that has been observed across Canada (34) and the United States (6,8,22,35,36). The decrease in O157 in Canada may be due to sanitary improvements in beef processing as well as better food safety education to consumers (34). The increase in incidence of non-O157 in BC and elsewhere may be due to the increase in use of laboratory methods enabling the detection of non-O157 strains (6,36).…”

Section: Discussionsupporting

confidence: 85%

Shiga toxin–producing Escherichia coli in British Columbia, 2011–2017: Analysis to inform exclusion guidelines

Noftall¹,

Taylor²,

Hoang³

et al. 2019

CCDR

View full text Add to dashboard Cite

Background: Shiga toxin-producing Escherichia coli (STEC) can cause severe illness including bloody diarrhea and hemolytic-uremic syndrome (HUS) through the production of Shiga toxins 1 (Stx1) and 2 (Stx2). E. coli O157:H7 was the most common serotype detected in the 1980s to 1990s, but improvements in laboratory methods have led to increased detection of non-O157 STEC. Non-O157 STEC producing only Stx1 tend to cause milder clinical illness. Exclusion guidelines restrict return to high-risk work or settings for STEC cases, but most do not differentiate between STEC serogroups and Stx type. Objective: To analyze British Columbia (BC) laboratory and surveillance data to inform the BC STEC exclusion guideline. Methods: For all STEC cases reported in BC in 2011-2017, laboratory and epidemiological data were obtained through provincial laboratory and reportable disease electronic systems, respectively. Incidence was measured for all STEC combined as well as by serogroup. Associations were measured between serogroups, Stx types and clinical outcomes. Results: Over the seven year period, 984 cases of STEC were reported. A decrease in O157 incidence was observed, while non-O157 rates increased. The O157 serogroup was significantly associated with Stx2. Significant associations were observed between Stx2 and bloody diarrhea, hospitalization and HUS. Conclusion: The epidemiology of STEC has changed in BC as laboratories increasingly distinguish between O157 and non-O157 cases and identify Stx type. It appears that non-O157 cases with Stx1 are less severe than O157 cases with Stx2. The BC STEC exclusion guidelines were updated as a result of this analysis.

show abstract

Section: Discussionsupporting

confidence: 85%

Shiga toxin–producing Escherichia coli in British Columbia, 2011–2017: Analysis to inform exclusion guidelines

Noftall¹,

Taylor²,

Hoang³

et al. 2019

CCDR

View full text Add to dashboard Cite

show abstract

“…Escherichia coli O157 is considered as one of the most dangerous causes of gastrointestinal disorders, along with the cause of most cases of food poisoning around the world (13,14). Impact of E. coli O157 as a food-borne pathogen is increased in public places, such as dormitories and hostelry centers, especially hospitals.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Antibiotic Resistance and Distribution of Virulence Factors in the Shiga Toxigenic Escherichia coli Recovered from Hospital Food

Ranjbar

Seif

Dehkordi

2019

Jundishapur J Microbiol

View full text Add to dashboard Cite

Background: Regarding the presence of immunosuppressed patients in hospitals, hospital food must have a boost safety. Escherichia coli O157 is one of the prevalent causes of food-related poisoning. Objectives: The current examination was done to assess the distribution of virulence factors and phenotypic analysis of antibiotic resistance of E. coli O157 bacteria recovered from hospital food. Methods: From April to August 2016, 200 hospital food samples were obtained and directly transported to the laboratory. Escherichia coli O157-positive bacteria were analyzed by disk diffusion and polymerase chain reaction (PCR). Results: Nine out of 200 (4.50%) samples harbored E. coli O157. Distribution of E. coli O157 in soup and gavage samples were 3% and 6%, respectively. Stx1 (100%), eaeA (100%), and ehlyA (100%) were the most frequently detected virulence genes. Escherichia coli O157 bacteria exhibited maximum prevalence of antibiotic resistance against tetracycline (100%), gentamycin (100%), ampicillin (100%), mezlocillin (50%), enrofloxacin (50%), and trimethoprim (50%). Distribution of resistance of E. coli O157 bacteria against more than six antibiotic agents was 11.11%. Conclusions: Gavage and soup samples may be sources of virulent and resistant E. coli O157. High presence of E. coli O157, simultaneous presence of multiple virulence genes, and resistance against animal-based antibiotics presented inadequacy of cooking time and temperature in processing of hospital foods.

show abstract

“…Hamburger, ground beef Food poisoning (Pollari et al, 2017) Clostridium botulinum Canned foods Botulism (Kalluri et al, 2003) Clostridium perfringens…”

Section: General Properties Of Gold Nanoparticlesmentioning

confidence: 99%

Single and multiple detections of foodborne pathogens by gold nanoparticle assays

Pissuwan

Gazzana

Mongkolsuk

et al. 2019

WIREs Nanomed Nanobiotechnol

View full text Add to dashboard Cite

A late detection of pathogenic microorganisms in food and drinking water has a high potential to cause adverse health impacts in those who have ingested the pathogens. For this reason there is intense interest in developing precise, rapid and sensitive assays that can detect multiple foodborne pathogens. Such assays would be valuable components in the campaign to minimize foodborne illness. Here, we discuss the emerging types of assays based on gold nanoparticles (GNPs) for rapidly diagnosing single or multiple foodborne pathogen infections. Colorimetric and lateral flow assays based on GNPs may be read by the human eye. Refractometric sensors based on a shift in the position of a plasmon resonance absorption peak can be read by the new generation of inexpensive optical spectrometers. Surface‐enhanced Raman spectroscopy and the quartz microbalance require slightly more sophisticated equipment but can be very sensitive. A wide range of electrochemical techniques are also under development. Given the range of options provided by GNPs, we confidently expect that some, or all, of these technologies will eventually enter routine use for detecting pathogens in food. This article is categorized under: Diagnostic Tools > Biosensing

show abstract

Evidence for the benefits of food chain interventions on E. coli O157:H7/NM prevalence in retail ground beef and human disease incidence: A success story

Cited by 21 publications

References 30 publications

Shiga toxin–producing Escherichia coli in British Columbia, 2011–2017: Analysis to inform exclusion guidelines

Shiga toxin–producing Escherichia coli in British Columbia, 2011–2017: Analysis to inform exclusion guidelines

Prevalence of Antibiotic Resistance and Distribution of Virulence Factors in the Shiga Toxigenic Escherichia coli Recovered from Hospital Food

Single and multiple detections of foodborne pathogens by gold nanoparticle assays

Contact Info

Product

Resources

About