Cross-sectional studyindependent cross-checkabstract checked I-CHK-123 standard review

A third of market chicken in Alexandria carried Salmonella

Prevalence of Non-typhoidal Salmonellae in the Retail Chicken Meat in Alexandria, Egypt.

Overview

Barac D et al.. Indian J Microbiol 2024 · PMID 39678989 · DOI 10.1007/s12088-024-01210-z

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

Does the study support the specific claim? No · Methodological quality: low

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.

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

Study design: Cross-sectional study – Cross-sectional microbiological survey of retail chicken (convenience sample)
Population: Retail chicken carcasses/parts
Country: Egypt
Period: see n
Sample size: 60 raw chicken carcass samples from six markets
Inclusion and exclusion criteria: as described in the abstract

Results: 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.
Absolute risks: not reported
Authors' conclusion: Substantial carcass contamination during market handling; interventions needed.

Prevalence with Wilson CI in stats/C-CHK-08_salmonella_prevalence.py.

Egyptian prevalence data to test the 80-85% figure.

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

Multidimensional assessment
Multidimensional assessment
Authenticity of the source	verified
Methodological quality	low
Risk of bias	some concerns
Precision of results	low
Directness	direct
Reproducibility	replicated
Consistency with the overall evidence	consistent
Regional transferability	low
Adequacy of the interpretation (by the archive)	not applicable