Measurement / residue studycited by the Tayebat archiveabstract only checked A-FSH-13 standard review
Antibiotics in US seafood
Reconnaissance of 47 antibiotics and associated microbial risks in seafood sold in the United States.
Overview
Done HY & Halden RU. J Hazard Mater 2015 · PMID 25449970 · DOI 10.1016/j.jhazmat.2014.08.075
Traces of five antibiotics were found; all samples were within US limits.
Does the study support the specific claim? Partly · Methodological quality: moderate
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Screen seafood for antibiotics.
- How was the study done?
LC-MS/MS.
- How many people, animals or samples were studied?
27 pooled samples.
- What was actually found?
Low-level residues.
- How large was the observed effect?
Up to 8.6 ng/g.
- What do the results mean in everyday life?
Traces, legal.
- What are the study's limitations?
Small sample.
- What does it say about Elawady's specific claim?
Supports detection only.
- Do the results apply to Germany and Europe?
Moderate.
- What can explicitly not be concluded from this study?
Consumer harm.
Scientific in-depth review
1. Full reference
- Authors
- Done HY, Halden RU
- Journal
- J Hazard Mater
- Year
- 2015
- Identifier
- PMID 25449970 DOI 10.1016/j.jhazmat.2014.08.075 · PMC4254636
- Verification
- verified – PubMed E-utilities efetch, 2026-10-25
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
not stated in abstract/record (grants: NIEHS NIH HHS)
2. Research question
Which antibiotics are present in US-purchased seafood?
3. Study design and population
- Study design
- Measurement / residue study – LC-MS/MS screening of 47 antibiotics in seafood bought in the US
- Population
Shrimp, salmon, catfish, trout, tilapia, swai from 11 countries
- Country
USA (imports from 11 countries)
- Period
published 2015
- Sample size
27 (pooled) samples
4. Methods and endpoints
- Exposure / intervention
Seafood type/origin
- Comparator
FDA limits
- Endpoints
Antibiotic residues
- Statistical methods
Descriptive
5. Actual results
- Results
All samples complied with FDA regulations; detected: oxytetracycline (wild shrimp 7.7 ng/g; farmed tilapia 2.7; farmed salmon 8.6; trout 3.9), 4-epioxytetracycline (salmon 4.1), sulfadimethoxine (shrimp 0.3), ormetoprim (salmon 0.5), virginiamycin (salmon marketed antibiotic-free, 5.2).
- Absolute risks
not reported
- Authors' conclusion
'Results indicate low levels of antibiotic residues and general compliance with U.S. regulations'; resistance development is a key concern.
6. Strengths
- 47 analytes
- Sensitive method
7. Weaknesses
- Small, pooled sample
- One residue found in WILD shrimp
8. Risk of bias
- Orienting tool
- none applicable
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- some concerns
- Rationale
Small sample.
9. Assessment of the statistical interpretation
Descriptive.
10. Relevance to the specific claim
11. Independent contrary findings
Same study's compliance statement.
12. Transferability to Germany and Europe
Moderate.
13. Overall methodological judgement
Correct detection; low levels.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | moderate |
| Risk of bias | some concerns |
| Precision of results | low |
| Directness | direct |
| Reproducibility | unknown |
| Consistency with the overall evidence | consistent |
| Regional transferability | moderate |
| Adequacy of the interpretation (by the archive) | essentially correct but incomplete |
14. Open questions
15. Linked fact checks
Use by the Tayebat archive
Note: according to the archive, the studies were compiled by the archive operators. Whether Dr. Elawady himself cited this study is not established.
- What the archive says about the study
Done and Halden detected five antibiotics across shrimp, tilapia, catfish and salmon sold in the US - including virginiamycin residues in salmon marketed as antibiotic-free.
- A. What was actually studied?
Residues in market seafood.
- B. What did the authors find?
Low-level residues; all compliant.
- C. What conclusions do the authors themselves draw?
Low levels, general compliance; resistance a concern.
- D. What does the archive derive from it?
Supports aquaculture antibiotic hazard.
- E. Is this derivation scientifically justified?
Detection correctly reported; archive omits compliance and 'low levels' conclusion.
- Adequacy of the interpretation (by the archive)
- essentially correct but incomplete