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Related Concept Videos

Sources of Food Contamination01:29

Sources of Food Contamination

Contamination of food by microbial agents and natural toxins poses significant risks to public health. These hazards can be introduced at various points across the food supply chain, ranging from environmental sources to processing and storage stages. Understanding these contamination pathways is critical for developing strategies to ensure food safety.Seafood is particularly vulnerable to contamination through both environmental exposure and microbial colonization. Toxins from harmful algal...
Reservoir of Infection01:30

Reservoir of Infection

Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...
Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...
Botulism01:22

Botulism

Botulism is a life-threatening neuroparalytic condition caused by botulinum neurotoxin, which is produced by the bacterium Clostridium botulinum, a Gram-positive, spore-forming, obligate anaerobe.In adults, the toxin enters the body in different ways: in foodborne botulism, the preformed toxin is absorbed in the intestine. In wound botulism, spores grow in injured tissue and release the toxin into the blood. Infant botulism differs mechanistically from adult forms. In infants, botulism commonly...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
Cholera01:25

Cholera

Cholera is an acute gastrointestinal disease caused by the Gram-negative bacterium Vibrio cholerae. It is transmitted primarily via the fecal-oral route through the ingestion of contaminated water or food.Vibrio cholerae is a motile, Gram-negative bacterium of the family Vibrionaceae, primarily associated with waterborne outbreaks in areas with inadequate sanitation. Although over 200 serogroups of V. cholerae exist, only O1 and O139 are responsible for epidemic cholera. The O1 serogroup,...

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Related Experiment Video

Updated: Jun 3, 2026

Development of a Larval Zebrafish Infection Model for Clostridioides difficile
09:13

Development of a Larval Zebrafish Infection Model for Clostridioides difficile

Published on: February 14, 2020

Clostridium difficile in seafood and fish.

Devon Metcalf1, Brent P Avery, Nicol Janecko

  • 1Department of Pathobiology, Ontario Veterinary College, University of Guelph, Ontario, Canada. dmetcalf@uoguelph.ca

Anaerobe
|March 8, 2011
PubMed
Summary
This summary is machine-generated.

Clostridium difficile contamination was detected in nearly 5% of Canadian retail seafood. This finding highlights the common occurrence of food contamination, posing potential public health risks.

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Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291
06:51

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291

Published on: December 10, 2016

Related Experiment Videos

Last Updated: Jun 3, 2026

Development of a Larval Zebrafish Infection Model for Clostridioides difficile
09:13

Development of a Larval Zebrafish Infection Model for Clostridioides difficile

Published on: February 14, 2020

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291
06:51

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291

Published on: December 10, 2016

Area of Science:

  • Food safety
  • Microbiology
  • Public health

Background:

  • Clostridium difficile is an opportunistic pathogen.
  • Foodborne transmission of C. difficile is a growing concern.

Purpose of the Study:

  • To investigate the prevalence of Clostridium difficile in retail seafood sold in Canada.

Main Methods:

  • Sampling of various retail seafood and fish products from Canadian grocery stores.
  • Laboratory analysis to detect the presence of C. difficile.

Main Results:

  • Clostridium difficile was identified in 4.8% (5 out of 119) of the analyzed seafood samples.
  • The findings indicate a measurable level of C. difficile contamination in the retail environment.

Conclusions:

  • Retail seafood can be a source of Clostridium difficile contamination.
  • Widespread food contamination with C. difficile is suggested, necessitating further research and food safety measures.