Cross-sectional studyindependent cross-checkabstract checked I-CHK-124 standard review

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

Occurrence, genetic characterization and antimicrobial resistance of Salmonella isolated from chicken meat and giblets.

Overview

Abd-Elghany SM et al.. Epidemiol Infect 2015 · PMID 25004116 · DOI 10.1017/S0950268814001708

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

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?: 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.

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: 200 samples (50 each of whole carcasses, drumsticks, livers, gizzards), Mansoura
Inclusion and exclusion criteria: as described in the abstract

Results: 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.
Absolute risks: not reported
Authors' conclusion: High contamination of chicken meat with MDR Salmonella is a public-health problem.

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

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

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

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