Evidence map›Paper›PMID 42415364›Full record

ArticleThe Journal of infectious diseases2026

Pharyngeal gonorrhea in Ugandan men with urogenital gonorrhea: differences in antimicrobial resistance and strain types between anatomical sites.

Johan H Melendez, Annet A Onzia, Emmanuel Mande, Adamaris Muniz Tirado, Brenda Dawa, Yu-Hsiang Hsieh, Matthew M Hamill, Rosalind Parkes-Ratanshi, Hervé Tettelin, Yukari C Manabe

Abstract read
In one paragraph

Article in The Journal of infectious diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Johan H MelendezJohns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID 0000-0001-6586-051X
Annet A OnziaInfectious Diseases Institute, Makerere University, Kampala  Uganda.ORCID 0000-0002-6741-1512
Emmanuel MandeInfectious Diseases Institute, Makerere University, Kampala  Uganda.
Adamaris Muniz TiradoJohns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Brenda DawaInfectious Diseases Institute, Makerere University, Kampala  Uganda.ORCID 0009-0006-8127-7723
Yu-Hsiang HsiehJohns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID 0000-0002-1616-8014
Matthew M HamillJohns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID 0000-0002-1277-819X
Rosalind Parkes-RatanshiInfectious Diseases Institute, Makerere University, Kampala  Uganda.
Hervé TettelinInstitute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA.ORCID 0000-0002-0615-3257
Yukari C ManabeJohns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID 0000-0001-8619-5598

Funding

TrainingU54EB007958 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI Matthew Hamill · 2007 to 2026
$34.6M
Characterizing Antimicrobial Resistance in Pharyngeal Neisseria gonorrhoeae Infections and the Role of Commensal Neisseria SpeciesK01AI153546 · NIAID · JOHNS HOPKINS UNIVERSITY · PI MELENDEZ, JOHAN HUMBERTO · 2020 to 2024
$651k
NIAID NIH HHS K01 AI153546NIBIB NIH HHS U54 EB007958
6 · The paper itself

Abstract

backgroundPharyngeal Neisseria gonorrhoeae (phNG) infections are difficult to treat and contribute to antimicrobial resistance (AMR) in NG, but studies on phNG and differences with urogenital NG (uNG) are limited.

methodsParticipants with urethral discharge syndrome (UDS) were recruited at health clinics in Kampala, Uganda, between July 2020 and August 2023. Penile-meatal and pharyngeal swabs were cultured for NG and tested by nucleic acid amplification test (NAAT) for NG, Chlamydia trachomatis, and Mycoplasma genitalium. Paired uNG and phNG isolates were subjected to susceptibility testing and whole genome sequencing (WGS). Demographic and behavioral data were analyzed for correlates of uNG and phNG.

resultsThe participants' (n=411) median [IQR] age was 25 [22, 32] years; 16.7% (67/401) were living with HIV. By NAAT and/or culture, 273 (66.4%) participants were positive for uNG and 29 (7.1%) for phNG. Of those with uNG, 10.6% (29/273) were NAAT-positive for phNG; 69.0% (20/29) were culture-positive for phNG. All (n=40) NG isolates were susceptible to cefixime and ceftriaxone and displayed intermediate resistance/resistance to ciprofloxacin, penicillin, and tetracycline; eight displayed high-level azithromycin resistance. WGS showed that 52.6% (10/19) of participants had different strains at urethral and pharyngeal sites. Having different strains at two anatomical sites was more common in men self-reporting transactional sex (p=0.019).

conclusionsphNG is common in Ugandan men with uNG, both displaying high rates of AMR. Different strains at the two anatomical sites were common, supporting the need for pharyngeal testing and phNG susceptibility testing as the pharynx is a critical site for AMR emergence.

Indexed as

antimicrobial resistanceextragenital STINeisseria gonorrhoeaepharyngeal gonorrheasexually transmitted infections (STI)

Identifiers

PMID42415364
PMCPMC13463301

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.