True Scientifically well supported Certainty of evidence: high provisional C-CHK-09

Chicken carries Campylobacter and Salmonella, which cause human infections.

Safety note: Cook poultry thoroughly and avoid cross-contamination (separate boards and utensils, do not wash raw chicken under the tap, wash hands); seek medical care for bloody diarrhoea, high fever, signs of dehydration or symptoms lasting more than a few days, especially in infants, older people, pregnant women and people with weakened immunity.
In short: This claim is true: raw chicken commonly carries Campylobacter and Salmonella and is a leading source of these infections in Europe and Egypt; thorough cooking and keeping raw chicken away from other foods prevent most infections.
Conclusion: Raw chicken commonly carries Campylobacter and Salmonella; cooking and hygiene control this risk.

Original statement

بيتكلموا بقى ان الكامبيلو باكتر ... والسالمونيلا هم جوه الفراخ اه هم جوه الفراخ ما فيهاش كلام

verbatim according to source. Translation by the project; the Arabic wording is authoritative.

Translation

Chicken carries Campylobacter and Salmonella, which cause human infections.

Origin

Source status
Video transcript (own words)
Attribution
Elawady (machine transcript)
Video
بدأت قناة "Dr Diaa Al Awady د ضياء العوضي" بثًا مباشرًا لايف حلو (Open source)
Published
10 April 2026
Timestamp
not available (transcript has no timings)
Attribution uncertainty
Archive transcript (YouTube CC or AI-generated); wording may contain transcription errors; no timestamps available.
Claimed health effect

Campylobacteriosis, salmonellosis.

Population concerned

general population (not specified)

Geographic restriction by Elawady

none found

Diverging source versions

Source status
Archive editors
Attribution
Archive editors (not Elawady)
Origin
https://eltayebat.com/rule/industrial-chicken/
Attribution uncertainty
Narrative and study selection written by the archive operators; the archive states the forbidden section is documented independently of Dr. Diaa's words.

Scientific assessment

True – The statement is supported by robust evidence.

Certainty of evidence: high – Further research is very unlikely to change the assessment.

1. What was claimed?

Campylobacter and Salmonella are found in chicken.

2. What is demonstrably correct?

This is correct. Campylobacteriosis accounted for 63.7% of confirmed human zoonosis cases in the EU in 2024, and broiler meat was most often implicated in strong-evidence Campylobacter outbreaks (I-EGG-14). In Germany, eating chicken was the main risk factor and 74% of human C. jejuni isolates were attributed to chickens (I-CHK-128); in Egypt, 52-64% of clinical isolates were attributed to retail chicken (I-CHK-129). WHO names undercooked poultry as a major source of Campylobacter and poultry among the main sources of Salmonella (I-CHK-130, I-CHK-141). Salmonella was found on 16-34% of Egyptian retail chicken carcasses (I-CHK-123, I-CHK-124, I-CHK-125).

3. What is wrong or exaggerated?

The implication that this makes chicken inedible is not supported: infections are prevented by thorough cooking and kitchen hygiene, and EFSA describes on-farm control options.

4. What remains unclear?

Not applicable.

5. Which studies support it?

I-EGG-14, I-CHK-05, A-CHK-07, A-CHK-17, I-CHK-09, I-CHK-128, I-CHK-129, I-CHK-130, I-CHK-141, I-CHK-123, I-CHK-124, I-CHK-125.

6. Which studies contradict it?

None.

7. What applies to Germany and Europe?

EU process hygiene criterion: 1000 CFU/g Campylobacter on neck skins of chilled broiler carcasses (Regulation (EC) 2073/2005).

8. What is known about Egypt?

High Salmonella prevalence in broiler chains reported (I-CHK-09).

9. What practical conclusion is appropriate?

Handle raw chicken separately, do not wash it under the tap, and cook it through.

Assessment details

Rationale for certainty of evidence

EU surveillance: campylobacteriosis and salmonellosis are the two most reported zoonoses; broiler meat is the food most frequently implicated in strong-evidence Campylobacter outbreaks; Salmonella in eggs/egg products is the agent-food pair of most concern; outbreak investigations confirm chicken as a vehicle.

Source quality

Own words consistent with surveillance data.

Regional transferability

Applies in the EU and Egypt; magnitude differs.

Individual exceptions

Severe courses more likely in infants, older and immunocompromised people.

Regional scope of the claim
general (biological/medical)
Last reviewed
26 October 2026 provisional

Scientific evidence in detail

Scientifically well supported – The claim agrees with consistent, high-quality evidence.

Research question: Is chicken an important source of human Campylobacter and Salmonella infections, and are these risks prevented by cooking and kitchen hygiene?

Research question in detail (PECO)
Population
General population (higher risk: infants, older and immunocompromised people)
Intervention or exposure
Handling and eating chicken (raw/undercooked; cross-contamination)
Comparison
Other sources
Geographic scope
universal; magnitude production-dependent
Outcomes
  • campylobacteriosis
  • salmonellosis
  • attributable fraction

Study results as reported by the authors. Our assessment follows below.

What speaks for the claim?

What speaks against the claim?

No high-quality evidence against the claim was found.

What does the overall evidence say?

Editorial assessment based on the studies above – not itself a study result.

Which position is better supported?

Correct: raw chicken is a main source of Campylobacter and an important source of Salmonella; infections are prevented by thorough cooking and avoiding cross-contamination.

Why some studies weigh more

Consistent surveillance, attribution and outbreak data in the EU, USA and Egypt; WHO agrees.

Is a causal relationship established? Yes, established Outbreak investigations, genotyping and case-control studies.

Remaining uncertainty

Exact attributable fractions in Egypt.

Justified conclusion

True; the practical consequence is hygiene and cooking, not avoidance of chicken.

Why do studies seem to disagree?

Attribution studies also identify cattle/dairy as sources (I-CHK-129); this limits but does not contradict the role of chicken.

Does this depend on the country?
General biological effects
Pathogen biology universal.
Eating habits
Home slaughter and market handling increase contamination (I-CHK-123).
Origin of the food
Egyptian market chicken more often contaminated than EU chicken.
Contaminants
Multidrug-resistant strains common in Egypt (I-CHK-124, I-CHK-125).
National production conditions
Egypt: no national control programme results found.
Legal rules
EU process hygiene criteria (Reg. 2073/2005); Egypt NFSA Decision 1/2021.
Actual monitoring data
EU: annual One Health report; Egypt: local studies only.

A regional difference is supported by robust data.

Statistical re-check
  • Consistency of attribution shares – HS markers: 64.2% + 35.8% = 100%; cgMLST 52.3% + 47.7% = 100% (two-source model). not recalculable from the published data
Certainty of the overall evidence (GRADE, simplified)
Main outcome
Chicken as source of human Campylobacter/Salmonella infection
Starting level
low (observational studies)
Reasons for upgrading
  • large and consistent effect across settings
  • outbreak evidence
Result
high

Simplified assessment by a single reviewer, following the GRADE approach; not a formal GRADE panel. GRADE rates the body of evidence for one outcome, not individual studies.

Clinical guidelines and official statements checked
  • WHO: Campylobacter (fact sheet) (2020) · Original publication
    Undercooked contaminated poultry is believed to be a major contributor; thorough cooking kills Campylobacter; infections can be fatal in young children, elderly and immunosuppressed people.
  • WHO: Salmonella (non-typhoidal) (fact sheet) (2018) · Original publication
    Salmonellosis is mainly contracted through contaminated food of animal origin incl. poultry; 'cook thoroughly' is recommended.
  • EFSA/ECDC: The European Union One Health 2024 Zoonoses Report (existing study I-EGG-14) (2025) · Original publication
    Campylobacteriosis 63.7% of reported zoonosis cases; broiler meat most often implicated in strong-evidence Campylobacter outbreaks; 4.9% of fresh broiler meat units Salmonella-positive.
Search strategy

Documented literature searches for this review (search strings in the original database syntax).

DatabaseDateSearchLooking forHitsIncluded
Europe PMC26 October 2026(TITLE:campylobacter) AND (TITLE:"source attribution" OR TITLE:"attribution") AND (ABSTRACT:chicken OR ABSTRACT:poultry)both directions16
PubMed26 October 2026campylobacter[ti] AND (attribution[ti] OR attributable[ti]) AND (chicken OR poultry) AND (meta-analysis[pt] OR systematic review[pt] OR review[pt])contradicting evidence0
PubMed26 October 2026salmonella[ti] AND (chicken meat[tiab] OR retail chicken[tiab] OR broiler carcass*[tiab]) AND Egypt[tiab] AND prevalence[tiab]supporting evidence2
WHO website26 October 2026fact sheets: Campylobacter; Salmonella (non-typhoidal)guidelines2

Open questions

National Egyptian attribution and surveillance.

How deeply was this checked?

12 linked studies: 6 checked in full text (3 of them with a structured risk-of-bias assessment), 6 on the basis of the abstract, 0 bibliographically only. No formal assessment with two independent reviewers and no independent human expert review has taken place yet.

Last scientific review: 26 October 2026

History of the verdict
  1. 25 October 2026 · Phase 1 · Initial assessment: True (high)
  2. 26 October 2026 · Phase 4 (systematic evidence review) · Re-examined with extended evidence; verdict unchanged: True (high)
    New attribution studies from Germany and Egypt and WHO statements confirm the claim. Safety note preserved and sharpened.
    New sources: I-CHK-128 I-CHK-129 I-CHK-130 I-CHK-141

In plain language

It is true that raw chicken often carries Campylobacter and Salmonella bacteria. In Europe, Campylobacter is the most common cause of food-borne bacterial infection, and chicken is a main source. These germs are killed by thorough cooking. Keeping raw chicken away from other foods in the kitchen prevents most infections.

Studies on this claim

Studies supporting the claim (12)

  • EU zoonoses report 2024

    EFSA, ECDC. EFSA J 2025 · PMID 41377167 · DOI 10.2903/j.efsa.2025.9759
    Otherindependent cross-checkfull text checked★ key study

    Campylobacter and Salmonella are the most common food-borne infections in the EU; about 5% of fresh chicken samples and 0.3% of egg samples had Salmonella.

    Chicken carries Campylobacter and Salmonella, which cause human infections.

    Does the study support the specific claim? Partly · Methodological quality: high · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    Occurrence of zoonoses and zoonotic agents in humans, food, animals and feed in the EU, 2024

    How was the study done?

    EU surveillance report under Zoonoses Directive 2003/99/EC

    How many people, animals or samples were studied?

    e.g., 95,954 fresh broiler meat samples; 12,327 egg samples; 27 EU Member States, UK (NI), 8 non-MS

    What was actually found?

    Campylobacteriosis 63.7% of confirmed zoonosis cases, salmonellosis second. Salmonella-positive: fresh meat from broilers 4.9%, turkeys 4.7%, eggs and egg products 0.31%. Adult laying-hen flock Salmonella prevalence 4.0%, target serovars 1.6%. Salmonella in eggs and egg products = agent/food pair of most concern; broiler meat most frequently implicated in strong-evidence Campylobacter outbreaks. Campylobacter PHC 1000 CFU/g on neck skin.

    How large was the observed effect?

    Descriptive; trend analyses

    What do the results mean in everyday life?

    Poultry germs are a real but controllable risk.

    What are the study's limitations?

    Reporting differences between countries; Operator vs official sampling differ

    What does it say about Elawady's specific claim?

    Supports existence of pathogens; contradicts exaggerated prevalence.

    Do the results apply to Germany and Europe?

    Directly EU.

    What can explicitly not be concluded from this study?

    Not representative for Egypt.

    Scientific details →

  • EFSA: controlling Campylobacter in broilers

    EFSA BIOHAZ Panel. EFSA J 2020 · PMID 32874298 · DOI 10.2903/j.efsa.2020.6090
    Risk assessmentindependent cross-checkfull text, structured risk-of-bias assessment

    Farm measures could reduce human Campylobacter infections from chicken meat substantially.

    Chicken carries Campylobacter and Salmonella, which cause human infections.

    Does the study support the specific claim? Partly · Methodological quality: high · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    Effect of on-farm control options on human campylobacteriosis from broiler meat

    How was the study done?

    EFSA scientific opinion (PAF modelling, expert knowledge elicitation)

    How many people, animals or samples were studied?

    Not applicable; EU broiler production

    What was actually found?

    In the EU, about 27% of broiler flocks and 37% of fresh broiler meat carry Campylobacter (2008 baseline: 71% of batches, 76% of carcasses); chicken meat may cause 20-30% of human cases. Farm measures could cut broiler-related cases by roughly 7-27% each (very uncertain); a 3-log cut in gut counts by 58%.

    How large was the observed effect?

    PAF; EKE

    What do the results mean in everyday life?

    The risk is real and can be reduced.

    What are the study's limitations?

    Wide uncertainty

    What does it say about Elawady's specific claim?

    Supports pathogen claim, not avoidance.

    Do the results apply to Germany and Europe?

    Directly EU.

    What can explicitly not be concluded from this study?

    Exact effect sizes; combined effects; anything about digestibility or gut damage from chicken meat.

    Scientific details →

  • Resistant Campylobacter linked to poultry in the US

    Kassenborg HD et al.. Clin Infect Dis 2004 · PMID 15095200 · DOI 10.1086/381597
    Case-control studycited by the Tayebat archiveabstract checked

    Domestic resistant infections were linked to eating chicken or turkey at restaurants.

    Chicken carries Campylobacter and Salmonella, which cause human infections.

    Does the study support the specific claim? Yes · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    What are risk factors for fluoroquinolone-resistant Campylobacter infection?

    How was the study done?

    Population-based case-control study (FoodNet)

    How many people, animals or samples were studied?

    858 isolates tested; 64 FQ-resistant vs 582 susceptible with travel data; 33 matched case-control pairs; Patients with Campylobacter infection and matched controls

    What was actually found?

    11% resistant. Travel OR 7.6 (4.3-13.4). Domestic cases: eating chicken or turkey at commercial establishment matched OR 10.0 (1.3-78).

    How large was the observed effect?

    OR, matched OR

    What do the results mean in everyday life?

    Poultry can transmit resistant Campylobacter.

    What are the study's limitations?

    Very wide CI (only 33 pairs); Recall bias

    What does it say about Elawady's specific claim?

    Supports.

    Do the results apply to Germany and Europe?

    Moderate.

    What can explicitly not be concluded from this study?

    Precise risk size.

    Scientific details →

  • US Salmonella outbreak from one chicken company

    Gieraltowski L et al.. PLoS One 2016 · PMID 27631492 · DOI 10.1371/journal.pone.0162369
    Outbreak reportcited by the Tayebat archivefull text, structured risk-of-bias assessment

    634 people fell ill from resistant Salmonella traced to one company's chicken.

    Chicken carries Campylobacter and Salmonella, which cause human infections.

    Does the study support the specific claim? Yes · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    What caused a large multistate MDR Salmonella Heidelberg outbreak?

    How was the study done?

    Outbreak investigation (epidemiological, laboratory, traceback)

    How many people, animals or samples were studied?

    634 cases; 435 interviewed; 634 US case-patients

    What was actually found?

    634 sick (38% hospitalised, no deaths); 87% of those with brand data ate Company A chicken; 67% of tested patient isolates resistant, 35% multidrug-resistant; Salmonella in 26% of samples at the implicated plants, down to about 5% after fixes.

    How large was the observed effect?

    Descriptive

    What do the results mean in everyday life?

    Shows why safe handling of raw chicken matters.

    What are the study's limitations?

    Single outbreak

    What does it say about Elawady's specific claim?

    Supports existence of hazard.

    Do the results apply to Germany and Europe?

    Moderate.

    What can explicitly not be concluded from this study?

    Cannot give routine prevalence in chicken and does not support an 80-85% contamination rate.

    Scientific details →

  • Salmonella in Egyptian broiler chickens

    Elkenany R et al.. BMC Vet Res 2019 · PMID 31029108 · DOI 10.1186/s12917-019-1867-z
    Cross-sectional studyindependent cross-checkfull text, structured risk-of-bias assessment

    About 29% of retail chicken carcasses and 32% of farm chickens in one Egyptian province had Salmonella, mostly multidrug-resistant.

    Chicken carries Campylobacter and Salmonella, which cause human infections.

    Does the study support the specific claim? Partly · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    Prevalence, resistance and virulence genes of Salmonella in broilers and retail carcasses

    How was the study done?

    Cross-sectional microbiological survey

    How many people, animals or samples were studied?

    420 samples from 5 broiler farms and 5 retail shops, El-Sharkia, summer 2017

    What was actually found?

    Salmonella in 28.6% of all samples (carcasses 29.4%, cloacal swabs 32%, environment 22%); 76.7% of isolates multidrug-resistant; all resistant to trimethoprim-sulfamethoxazole; none to imipenem.

    How large was the observed effect?

    Descriptive

    What do the results mean in everyday life?

    In Egypt, careful handling and cooking of chicken is especially important.

    What are the study's limitations?

    Only 5 farms and 5 shops in one province, one season; no human data; descriptive only.

    What does it say about Elawady's specific claim?

    Supports concern but not 80-85%.

    Do the results apply to Germany and Europe?

    Low (Egypt).

    What can explicitly not be concluded from this study?

    Not national.

    Scientific details →

  • Most Campylobacter infections in Germany trace back to chicken

    Rosner BM et al.. Sci Rep 2017 · PMID 28698561 · DOI 10.1038/s41598-017-05227-x
    Case-control studyindependent cross-checkabstract checked★ key study

    About three quarters of human C. jejuni isolates were attributed to chickens; kitchen handling of raw poultry was a risk factor.

    Chicken is the main reservoir (74% of C. jejuni) and the main risk factor for human infection in Germany.

    Does the study support the specific claim? Yes · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    What are risk factors for sporadic Campylobacter infection in Germany, and which animal sources contribute?

    How was the study done?

    Case-control study plus MLST-based source attribution (asymmetric island model)

    How many people, animals or samples were studied?

    not stated in abstract

    What was actually found?

    Consumption of chicken meat and eating out were the most important risk factors; others: preparing poultry at home, preparing raw meat and uncooked food at the same time, contact with poultry, gastric acid inhibitors. Mean probability that human C. jejuni isolates originated from chickens 74%; C. coli 56% chicken and 32% pigs.

    How large was the observed effect?

    Consumption of chicken meat and eating out were the most important risk factors; others: preparing poultry at home, preparing raw meat and uncooked food at the same time, contact with poultry, gastric acid inhibitors. Mean probability that human C. jejuni isolates originated from chickens 74%; C. coli 56% chicken and 32% pigs.

    What do the results mean in everyday life?

    Chicken is the main source of this common food poisoning; kitchen hygiene matters.

    What are the study's limitations?

    Attribution models assign reservoirs, not exposure route; Sample size not in abstract

    What does it say about Elawady's specific claim?

    Directly supports the claim.

    Do the results apply to Germany and Europe?

    German/EU data.

    What can explicitly not be concluded from this study?

    Does not show that cooked chicken is unsafe.

    Scientific details →

  • In Egypt, chicken is a main source of Campylobacter infection

    Saif NA et al.. Transbound Emerg Dis 2022 · PMID 34033263 · DOI 10.1111/tbed.14165
    Otherindependent cross-checkabstract checked

    Half to two thirds of patient isolates matched retail chicken; the rest matched cattle/dairy.

    About half to two thirds of Egyptian clinical C. jejuni isolates attributed to retail chicken.

    Does the study support the specific claim? Yes · Methodological quality: low · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    Which sources contribute to human C. jejuni infection in Egypt?

    How was the study done?

    Whole-genome sequencing and probabilistic source attribution (pilot)

    How many people, animals or samples were studied?

    90 isolates

    What was actually found?

    Retail chicken: 64.2% (HS markers) and 52.3% (cgMLST) of clinical isolates; cattle reservoir 35.8% and 47.7%.

    How large was the observed effect?

    Retail chicken: 64.2% (HS markers) and 52.3% (cgMLST) of clinical isolates; cattle reservoir 35.8% and 47.7%.

    What do the results mean in everyday life?

    Chicken is also a main Campylobacter source in Egypt; dairy and cattle matter too.

    What are the study's limitations?

    Pilot; small sample; Only two candidate sources

    What does it say about Elawady's specific claim?

    Supports the claim for Egypt.

    Do the results apply to Germany and Europe?

    Pattern similar to EU attribution studies.

    What can explicitly not be concluded from this study?

    Pilot; not precise.

    Scientific details →

  • WHO: chicken is a major Campylobacter source; cooking kills it

    World Health Organization. WHO fact sheet 2020
    Guideline / position statementindependent cross-checkfull text checked

    WHO names undercooked poultry as a major source and says thorough cooking kills the bacteria.

    WHO: undercooked poultry is a major contributor; thorough cooking kills Campylobacter.

    Does the study support the specific claim? Yes · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    What is campylobacteriosis, how is it transmitted and prevented?

    How was the study done?

    Agency fact sheet

    How many people, animals or samples were studied?

    not applicable

    What was actually found?

    Campylobacter is 'the most common bacterial cause of human gastroenteritis in the world'; 'consumption of undercooked contaminated poultry is believed to be a major contributor'; 'Campylobacter species can be killed by heat and thoroughly cooking food'; heating, pasteurisation or irradiation is 'the only effective method of eliminating Campylobacter from contaminated foods'; infections can be fatal among very young children, elderly and immunosuppressed people.

    How large was the observed effect?

    Campylobacter is 'the most common bacterial cause of human gastroenteritis in the world'; 'consumption of undercooked contaminated poultry is believed to be a major contributor'; 'Campylobacter species can be killed by heat and thoroughly cooking food'; heating, pasteurisation or irradiation is 'the only effective method of eliminating Campylobacter from contaminated foods'; infections can be fatal among very young children, elderly and immunosuppressed people.

    What do the results mean in everyday life?

    Handle raw chicken carefully and cook it through.

    What are the study's limitations?

    Fact sheet from 2020

    What does it say about Elawady's specific claim?

    Supports the claim and the safety note.

    Do the results apply to Germany and Europe?

    Global.

    What can explicitly not be concluded from this study?

    Not quantitative.

    Scientific details →

  • WHO: poultry is a main Salmonella source; cook thoroughly

    World Health Organization. WHO fact sheet 2018
    Guideline / position statementindependent cross-checkfull text checked

    WHO names poultry among the main food sources of Salmonella and recommends thorough cooking.

    WHO: poultry is a main food source of Salmonella; thorough cooking prevents infection.

    Does the study support the specific claim? Yes · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    What is salmonellosis, how is it transmitted and prevented?

    How was the study done?

    Agency fact sheet

    How many people, animals or samples were studied?

    not applicable

    What was actually found?

    Salmonella bacteria 'are prevalent in food animals such as poultry, pigs, and cattle'; human salmonellosis 'is generally contracted through the consumption of contaminated food of animal origin (mainly eggs, meat, poultry, and milk)'; basic food hygiene practices such as 'cook thoroughly' are recommended.

    How large was the observed effect?

    Salmonella bacteria 'are prevalent in food animals such as poultry, pigs, and cattle'; human salmonellosis 'is generally contracted through the consumption of contaminated food of animal origin (mainly eggs, meat, poultry, and milk)'; basic food hygiene practices such as 'cook thoroughly' are recommended.

    What do the results mean in everyday life?

    Cook chicken through and keep raw meat apart.

    What are the study's limitations?

    Fact sheet from 2018

    What does it say about Elawady's specific claim?

    Supports the claim and safety note.

    Do the results apply to Germany and Europe?

    Global.

    What can explicitly not be concluded from this study?

    Not quantitative.

    Scientific details →

  • A third of market chicken in Alexandria carried Salmonella

    Barac D et al.. Indian J Microbiol 2024 · PMID 39678989 · DOI 10.1007/s12088-024-01210-z
    Cross-sectional studyindependent cross-checkabstract checked

    33% of carcass samples from Alexandria markets were contaminated; a supermarket sample set was free.

    Confirms that Salmonella is common on Egyptian retail chicken.

    Does the study support the specific claim? No · Methodological quality: low · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    How common is Salmonella in retail chicken and which resistance patterns occur?

    How was the study done?

    Cross-sectional microbiological survey of retail chicken (convenience sample)

    How many people, animals or samples were studied?

    60 raw chicken carcass samples from six markets

    What was actually found?

    Overall Salmonella contamination 33.3%; liver and gizzard 60% each, neck 50%, wing 30%; heart and small intestine negative; one supermarket negative; markets ranged 30-60%. Main serotypes S. Typhimurium and S. Kentucky.

    How large was the observed effect?

    Overall Salmonella contamination 33.3%; liver and gizzard 60% each, neck 50%, wing 30%; heart and small intestine negative; one supermarket negative; markets ranged 30-60%. Main serotypes S. Typhimurium and S. Kentucky.

    What do the results mean in everyday life?

    Salmonella on raw chicken in Egypt is common (roughly 1 in 6 to 1 in 3 carcasses) but far below 80-85%.

    What are the study's limitations?

    Small convenience sample from one city; Not nationally representative

    What does it say about Elawady's specific claim?

    Contradicts the specific number; supports that contamination is real and higher than in the EU.

    Do the results apply to Germany and Europe?

    Egyptian data; EU levels are lower (4.9%).

    What can explicitly not be concluded from this study?

    Not representative of Egypt as a whole.

    Scientific details →

  • Salmonella in 16% of whole chickens and 60% of gizzards in Mansoura

    Abd-Elghany SM et al.. Epidemiol Infect 2015 · PMID 25004116 · DOI 10.1017/S0950268814001708
    Cross-sectional studyindependent cross-checkabstract checked

    Whole carcasses 16%, gizzards 60%, overall 34%; most isolates were multidrug resistant.

    Confirms that Salmonella is common on Egyptian retail chicken.

    Does the study support the specific claim? No · Methodological quality: low · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    How common is Salmonella in retail chicken and which resistance patterns occur?

    How was the study done?

    Cross-sectional microbiological survey of retail chicken (convenience sample)

    How many people, animals or samples were studied?

    200 samples (50 each of whole carcasses, drumsticks, livers, gizzards), Mansoura

    What was actually found?

    Salmonella in 16% (8/50) of whole carcasses, 28% (14/50) drumsticks, 32% (16/50) livers, 60% (30/50) gizzards; overall 34% (68/200). 92.8% of isolates multidrug resistant.

    How large was the observed effect?

    Salmonella in 16% (8/50) of whole carcasses, 28% (14/50) drumsticks, 32% (16/50) livers, 60% (30/50) gizzards; overall 34% (68/200). 92.8% of isolates multidrug resistant.

    What do the results mean in everyday life?

    Salmonella on raw chicken in Egypt is common (roughly 1 in 6 to 1 in 3 carcasses) but far below 80-85%.

    What are the study's limitations?

    Small convenience sample from one city; Not nationally representative

    What does it say about Elawady's specific claim?

    Contradicts the specific number; supports that contamination is real and higher than in the EU.

    Do the results apply to Germany and Europe?

    Egyptian data; EU levels are lower (4.9%).

    What can explicitly not be concluded from this study?

    Not representative of Egypt as a whole.

    Scientific details →

  • Salmonella in 18% of native chicken carcasses in Mansoura

    El-Saeed BA et al.. Ann Clin Microbiol Antimicrob 2024 · PMID 38965586 · DOI 10.1186/s12941-024-00713-3
    Cross-sectional studyindependent cross-checkabstract checked

    18% of native chicken carcasses carried Salmonella, often highly resistant to antibiotics.

    Confirms that Salmonella is common on Egyptian retail chicken.

    Does the study support the specific claim? No · Methodological quality: low · Certainty of evidence: see overall assessment of the claim

    Original publication · Scientific details

    Study explained simply
    What did the researchers want to find out?

    How common is Salmonella in retail chicken and which resistance patterns occur?

    How was the study done?

    Cross-sectional microbiological survey of retail chicken (convenience sample)

    How many people, animals or samples were studied?

    150 freshly dressed native chicken carcasses from poultry shops, Mansoura, Jul-Nov 2022

    What was actually found?

    Salmonella confirmed (invA PCR) in 18% (27/150) of carcasses. Of 129 isolates, 93.8% resistant to >=3 antibiotics; 82.2% resistant to colistin and to cefepime; 3.9% pan-drug-resistant.

    How large was the observed effect?

    Salmonella confirmed (invA PCR) in 18% (27/150) of carcasses. Of 129 isolates, 93.8% resistant to >=3 antibiotics; 82.2% resistant to colistin and to cefepime; 3.9% pan-drug-resistant.

    What do the results mean in everyday life?

    Salmonella on raw chicken in Egypt is common (roughly 1 in 6 to 1 in 3 carcasses) but far below 80-85%.

    What are the study's limitations?

    Small convenience sample from one city; Not nationally representative

    What does it say about Elawady's specific claim?

    Contradicts the specific number; supports that contamination is real and higher than in the EU.

    Do the results apply to Germany and Europe?

    Egyptian data; EU levels are lower (4.9%).

    What can explicitly not be concluded from this study?

    Not representative of Egypt as a whole.

    Scientific details →

Studies contradicting or limiting the claim (0)

No studies in this group.

Studies with mixed or unclear results (0)

No studies in this group.

Regional context

Germany / EU

EU process hygiene criterion: 1000 CFU/g Campylobacter on neck skins of chilled broiler carcasses (Regulation (EC) 2073/2005).

Egypt

High Salmonella prevalence in broiler chains reported (I-CHK-09).

What applies in my country?

General scientific assessment

True Raw chicken commonly carries Campylobacter and Salmonella; cooking and hygiene control this risk.

The following areas of food safety are relevant to this statement:

  • Veterinary medicines and antibiotics
  • Hormonal growth promoters
  • Contaminants (heavy metals, PFAS, PCBs, dioxins, nitrate)
  • Pathogens (Salmonella, Campylobacter, etc.)
  • Animal husbandry and feed
  • Controls, imports, recalls, labelling

Poultry

Choose a country to see the checked information for it.

Limits: legal rules describe what is allowed, not what every single food contains. Measurement data come from samples and are meaningful only together with their method details.

Country of residence or purchase Compare with another country

References

  1. The European Union One Health 2024 Zoonoses Report.. EFSA, ECDC. EFSA J 2025 · PMID 41377167 · DOI 10.2903/j.efsa.2025.9759
  2. Update and review of control options for Campylobacter in broilers at primary production.. EFSA BIOHAZ Panel. EFSA J 2020 · PMID 32874298 · DOI 10.2903/j.efsa.2020.6090
  3. Fluoroquinolone-resistant Campylobacter infections: eating poultry outside of the home and foreign travel are risk factors.. Kassenborg HD et al.. Clin Infect Dis 2004 · PMID 15095200 · DOI 10.1086/381597
  4. National Outbreak of Multidrug Resistant Salmonella Heidelberg Infections Linked to a Single Poultry Company.. Gieraltowski L et al.. PLoS One 2016 · PMID 27631492 · DOI 10.1371/journal.pone.0162369
  5. Antimicrobial resistance profiles and virulence genotyping of Salmonella enterica serovars recovered from broiler chickens and chicken carcasses in Egypt.. Elkenany R et al.. BMC Vet Res 2019 · PMID 31029108 · DOI 10.1186/s12917-019-1867-z
  6. A combined case-control and molecular source attribution study of human Campylobacter infections in Germany, 2011-2014.. Rosner BM et al.. Sci Rep 2017 · PMID 28698561 · DOI 10.1038/s41598-017-05227-x
  7. A pilot study revealing host-associated genetic signatures for source attribution of sporadic Campylobacter jejuni infection in Egypt.. Saif NA et al.. Transbound Emerg Dis 2022 · PMID 34033263 · DOI 10.1111/tbed.14165
  8. WHO fact sheet: Campylobacter (1 May 2020). World Health Organization. WHO fact sheet 2020
  9. WHO fact sheet: Salmonella (non-typhoidal) (20 February 2018). World Health Organization. WHO fact sheet 2018
  10. Prevalence of Non-typhoidal Salmonellae in the Retail Chicken Meat in Alexandria, Egypt.. Barac D et al.. Indian J Microbiol 2024 · PMID 39678989 · DOI 10.1007/s12088-024-01210-z
  11. Occurrence, genetic characterization and antimicrobial resistance of Salmonella isolated from chicken meat and giblets.. Abd-Elghany SM et al.. Epidemiol Infect 2015 · PMID 25004116 · DOI 10.1017/S0950268814001708
  12. Colistin-, cefepime-, and levofloxacin-resistant Salmonella enterica serovars isolated from Egyptian chicken carcasses.. El-Saeed BA et al.. Ann Clin Microbiol Antimicrob 2024 · PMID 38965586 · DOI 10.1186/s12941-024-00713-3

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