Cohort studyindependent cross-checkabstract checked I-ABX-108 standard review
Untreated throat gonorrhoea lasts about 4 months
The Duration of Pharyngeal Gonorrhea: A Natural History Study.
Overview
Barbee LA et al.. Clin Infect Dis 2021 · PMID 33513222 · DOI 10.1093/cid/ciab071
Without treatment, throat gonorrhoea lasted a median of 16 weeks.
Does the study support the specific claim? No · Methodological quality: moderate
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Measure how long untreated gonorrhoea lasts
- How was the study done?
Weekly testing cohort
- How many people, animals or samples were studied?
140 men; 21 infections
- What was actually found?
Median 16.3 weeks
- How large was the observed effect?
16.3 weeks (5.1-19.7)
- What do the results mean in everyday life?
Gonorrhoea does not clear in days; it can be passed on for months
- What are the study's limitations?
Small; throat infections only
- What does it say about Elawady's specific claim?
Contradicts cure in 6 days
- Do the results apply to Germany and Europe?
Moderate
- What can explicitly not be concluded from this study?
Effect of any diet (not studied)
Scientific in-depth review
1. Full reference
- Authors
- Barbee LA et al.
- Journal
- Clin Infect Dis
- Year
- 2021
- Identifier
- PMID 33513222 DOI 10.1093/cid/ciab071
- Verification
- verified – PubMed efetch 2026-10-26 + Crossref
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
NIH grants (PubMed record); COI not stated in record.
2. Research question
How long does untreated pharyngeal gonorrhoea last?
3. Study design and population
- Study design
- Cohort study – Prospective cohort with weekly self-collected samples (natural history)
- Population
Men who have sex with men
- Country
USA (Seattle)
- Period
March 2016-December 2018
- Sample size
140 men; 21 pharyngeal infections in 19 men
- Inclusion and exclusion criteria
48-week cohort; weekly pharyngeal NAAT (tested at study end)
4. Methods and endpoints
- Exposure / intervention
Untreated pharyngeal N. gonorrhoeae infection
- Comparator
not applicable
- Endpoints
Duration of infection
- Statistical methods
Kaplan-Meier
5. Actual results
- Results
Incidence 31.7/100 person-years (20.7-48.6); estimated median duration of pharyngeal gonorrhoea 16.3 weeks (95% CI 5.1-19.7).
- Absolute risks
Median 16.3 weeks untreated
- Authors' conclusion
Median duration of untreated pharyngeal gonorrhoea is 16 weeks, more than double previous estimates; long duration likely contributes to transmission.
6. Strengths
- Weekly sampling
- Direct natural-history data
7. Weaknesses
- Small number of infections
- Pharyngeal site only; one population
8. Risk of bias
- Orienting tool
- ROBINS-E
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- some concerns
- Rationale
Small cohort; results tested retrospectively.
9. Assessment of the statistical interpretation
Shows that infection can persist for months without treatment, but some infections (pharyngeal) do eventually clear.
10. Relevance to the specific claim
Natural-history data: untreated gonorrhoea persists for weeks to months; no clearance in 6 days.
11. Independent contrary findings
Shows spontaneous clearance does happen eventually at the pharynx (the honest 'supporting' observation), but over months and with ongoing transmission.
12. Transferability to Germany and Europe
Moderate; biology universal.
13. Overall methodological judgement
Contradicts '6 days' and highlights onward transmission when untreated.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | moderate |
| Risk of bias | some concerns |
| Precision of results | low |
| Directness | indirect |
| Reproducibility | partly replicated |
| Consistency with the overall evidence | consistent |
| Regional transferability | moderate |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
Duration at genital sites in women.
15. Linked fact checks
- Gonorrhoea can be cured without antibiotics by fasting with him and following his diet for six days. – Studies contradicting or limiting the claim