Food Safety Risk Assessment - Unit 7
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Questions and Answers

What is the incubation period range for Salmonellosis?

  • 8 to 72 hours (correct)
  • 24 to 48 hours
  • 1 to 3 days
  • 2 to 5 days
  • Which serotype of Salmonella is most commonly associated with fatal outcomes?

  • S.Heidelberg
  • S.Typhimurium
  • S.Enteritidis (correct)
  • S.Paratyphi
  • What temperature range allows for the growth of Salmonella?

  • 10–35°C
  • 5.2–46.2°C (correct)
  • 0–20°C
  • 15–30°C
  • Which population is considered most susceptible to severe Salmonella infections?

    <p>Infants and the elderly</p> Signup and view all the answers

    What are common symptoms of Salmonellosis?

    <p>Diarrhoea and vomiting</p> Signup and view all the answers

    What is the main focus area of UNIT 7 in FDSC-626?

    <p>Microbiological Risk Assessment</p> Signup and view all the answers

    Which pathogen is analyzed in the case study provided in FDSC-626?

    <p>Salmonella enterica spp.</p> Signup and view all the answers

    Which of the following resources is listed in the content for further information?

    <p><a href="http://www.who.int">www.who.int</a></p> Signup and view all the answers

    What is the purpose of a microbiological risk assessment in food safety?

    <p>To assess the likelihood of foodborne illness</p> Signup and view all the answers

    What type of pathogen is Salmonella enterica spp.?

    <p>Bacterium</p> Signup and view all the answers

    In which type of foods is Salmonella commonly found?

    <p>Undercooked eggs and poultry</p> Signup and view all the answers

    Which organization is referenced for information on Salmonella in the content?

    <p>European Centre for Disease Prevention and Control (ECDC)</p> Signup and view all the answers

    Why is it important to study case studies like that of Salmonella in eggs?

    <p>To understand contamination and prevention methods</p> Signup and view all the answers

    What is Reiter's syndrome primarily characterized by?

    <p>Joint pain, eye irritation, and painful urination</p> Signup and view all the answers

    Which food product is specifically mentioned as playing a major role in pathogen exposure during slaughter and processing?

    <p>Poultry</p> Signup and view all the answers

    How can the transmission of Salmonella to eggs be reduced?

    <p>By cleaning and disinfecting the environment</p> Signup and view all the answers

    What is the expected risk per serving of contaminated broilers, assuming a 20% prevalence?

    <p>1.13E-5</p> Signup and view all the answers

    In risk assessment, which factor is considered specific to the growth of microorganisms?

    <p>Survival of spores/toxins during processing</p> Signup and view all the answers

    What is the average risk per serving as represented in the cumulative distribution data?

    <p>1.13 illnesses per 100,000 servings</p> Signup and view all the answers

    Which of the following aspects is NOT mentioned as a specificity in the MRA methodology?

    <p>Chemical residue testing</p> Signup and view all the answers

    What does the dose-response relationship primarily indicate in epidemiological data?

    <p>The amount of a pathogen that determines the severity of disease</p> Signup and view all the answers

    Study Notes

    Food Safety Risk Assessment - Unit 7

    • Roundup weedkiller "probably" causes cancer, according to a WHO study. The active ingredient, glyphosate, may also be carcinogenic for non-Hodgkin's lymphoma.
    • Roundup is the world's most widely used weedkiller. WHO's cancer agency (IARC) classified glyphosate as "probably carcinogenic to humans".
    • Monsanto, an agricultural company, produces Roundup.
    • A European agency says glyphosate is unlikely to cause cancer in humans.
    • 54,000 active Roundup lawsuits remain.
    • Many lawsuits have settled out of court, with Monsanto paying approximately $11 billion.
    • To classify as Class 1 carcinogen, epidemiological and experimental animal studies need mechanistic data describing the causal association.

    Microbiological Risk Assessment

    • Steps in microbiological risk assessment include: hazard identification, exposure characterization, risk characterization, and hazard assessment.
    • Microorganisms like bacteria, viruses, parasites, and fungi can cause disease in humans.
    • A pathogen is an organism (e.g., bacteria, viruses, parasites, and fungi) causing disease.

    Case Study: Salmonella in Eggs

    • FDA upgraded a recall of eggs for salmonella to "serious" health risks or "death".
    • A contamination of salmonella in some 3 million eggs led to a recall by French authorities.
    • An outbreak of Salmonella Enteritidis infections linked to Polish eggs affected multiple European Union (EU) and European Economic Area (EEA) countries, resulting in at least 1,412 reported cases.

    One Health

    • One Health is an integrated approach to sustainably balance and optimize the health of people, animals, and ecosystems. It emphasizes the interconnectedness of human, animal, and environmental health.

    Additional Notes

    • Linear extrapolation is the common method of extrapolating data at low concentrations for dose-response relationships in tumor formation studies.
    • The maximum daily dietary exposure to chemicals is estimated at 30 ng/person. Based on this estimate, the chemical may need to be assessed based on a priority approach for evaluation.
    • Information on the origin of the word "Salmonella" was included. The name stems from D. Salmon.

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    Description

    This quiz covers key topics from Unit 7 of Food Safety Risk Assessment, focusing on the carcinogenic potential of glyphosate and its implications in microbiological risk assessment. Explore critical issues surrounding Roundup weedkiller, including regulatory views and ongoing lawsuits. Test your understanding of the processes involved in assessing microbiological hazards.

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