Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study

BackgroundThis study aimed to examine the transmission dynamics of Neisseria gonorrhoeae (NG) in heterosexual sex work networks (HSWNs) and the impact of variation in sexual behavior and interventions on NG epidemiology. MethodsThe study employed an individual-based mathematical model to simulate NG...

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Main Author: Houssein H., Ayoub (author)
Other Authors: Tomy, Milan (author), Chemaitelly, Hiam (author), Omori, Ryosuke (author), Buse, Kent (author), Low, Nicola (author), Hawkes, Sarah (author), Abu-Raddad, Laith J. (author)
Format: article
Published: 2024
Subjects:
Online Access:http://dx.doi.org/10.1016/j.epidem.2024.100785
https://www.sciencedirect.com/science/article/pii/S175543652400046X
http://hdl.handle.net/10576/61554
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_version_ 1857415086527741952
author Houssein H., Ayoub
author2 Tomy, Milan
Chemaitelly, Hiam
Omori, Ryosuke
Buse, Kent
Low, Nicola
Hawkes, Sarah
Abu-Raddad, Laith J.
author2_role author
author
author
author
author
author
author
author_facet Houssein H., Ayoub
Tomy, Milan
Chemaitelly, Hiam
Omori, Ryosuke
Buse, Kent
Low, Nicola
Hawkes, Sarah
Abu-Raddad, Laith J.
author_role author
dc.creator.none.fl_str_mv Houssein H., Ayoub
Tomy, Milan
Chemaitelly, Hiam
Omori, Ryosuke
Buse, Kent
Low, Nicola
Hawkes, Sarah
Abu-Raddad, Laith J.
dc.date.none.fl_str_mv 2024-11-28T09:06:50Z
2024-08-05
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://dx.doi.org/10.1016/j.epidem.2024.100785
Ayoub, H. H., Tomy, M., Chemaitelly, H., Omori, R., Buse, K., Low, N., ... & Abu-Raddad, L. J. (2024). Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study. Epidemics, 48, 100785.
1755-4365
https://www.sciencedirect.com/science/article/pii/S175543652400046X
http://hdl.handle.net/10576/61554
48
1878-0067
dc.language.none.fl_str_mv en
dc.publisher.none.fl_str_mv Elsevier
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
dc.subject.none.fl_str_mv Neisseria gonorrhoeae
Sex work
Female sex workers
Sexual behavior
Epidemiology
Mathematical model
dc.title.none.fl_str_mv Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
dc.type.none.fl_str_mv Article
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
description BackgroundThis study aimed to examine the transmission dynamics of Neisseria gonorrhoeae (NG) in heterosexual sex work networks (HSWNs) and the impact of variation in sexual behavior and interventions on NG epidemiology. MethodsThe study employed an individual-based mathematical model to simulate NG transmission dynamics in sexual networks involving female sex workers (FSWs) and their clients, primarily focusing on the Middle East and North Africa region. A deterministic model was also used to describe NG transmission from clients to their spouses. ResultsNG epidemiology in HSWNs displays two distinct patterns. In the common low-partner-number HSWNs, a significant proportion of NG incidence occurs among FSWs, with NG prevalence 13 times higher among FSWs than clients, and three times higher among clients than their spouses. Interventions substantially reduce incidence. Increasing condom use from 10 % to 50 % lowers NG prevalence among FSWs, clients, and their spouses from 12.2 % to 6.4 %, 1.2 % to 0.5 %, and 0.4 % to 0.2 %, respectively. Increasing symptomatic treatment coverage among FSWs from 0 % to 100 % decreases prevalence from 10.6 % to 4.5 %, 0.8 % to 0.4 %, and 0.3 % to 0.1 %, respectively. Increasing asymptomatic treatment coverage among FSWs from 0 % to 50 % decreases prevalence from 8.2 % to 0.4 %, 0.6 % to 0.1 %, and 0.2 % to 0.0 %, respectively, with very low prevalence when coverage exceeds 50 %. In high-partner-number HSWNs, prevalence among FSWs saturates at a high level, and the vast majority of incidence occurs among clients and their spouses, with a limited impact of incremental increases in interventions. ConclusionNG epidemiology in HSWNs is typically a "fragile epidemiology" that is responsive to a range of interventions even if the interventions are incremental, partially efficacious, and only applied to FSWs.
eu_rights_str_mv openAccess
format article
id qu_d6a1ef293c398b37fb5ac1345fbcdf15
identifier_str_mv Ayoub, H. H., Tomy, M., Chemaitelly, H., Omori, R., Buse, K., Low, N., ... & Abu-Raddad, L. J. (2024). Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study. Epidemics, 48, 100785.
1755-4365
48
1878-0067
language_invalid_str_mv en
network_acronym_str qu
network_name_str Qatar University repository
oai_identifier_str oai:qspace.qu.edu.qa:10576/61554
publishDate 2024
publisher.none.fl_str_mv Elsevier
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repository.name.fl_str_mv
repository_id_str
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
spelling Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling studyHoussein H., AyoubTomy, MilanChemaitelly, HiamOmori, RyosukeBuse, KentLow, NicolaHawkes, SarahAbu-Raddad, Laith J.Neisseria gonorrhoeaeSex workFemale sex workersSexual behaviorEpidemiologyMathematical modelBackgroundThis study aimed to examine the transmission dynamics of Neisseria gonorrhoeae (NG) in heterosexual sex work networks (HSWNs) and the impact of variation in sexual behavior and interventions on NG epidemiology. MethodsThe study employed an individual-based mathematical model to simulate NG transmission dynamics in sexual networks involving female sex workers (FSWs) and their clients, primarily focusing on the Middle East and North Africa region. A deterministic model was also used to describe NG transmission from clients to their spouses. ResultsNG epidemiology in HSWNs displays two distinct patterns. In the common low-partner-number HSWNs, a significant proportion of NG incidence occurs among FSWs, with NG prevalence 13 times higher among FSWs than clients, and three times higher among clients than their spouses. Interventions substantially reduce incidence. Increasing condom use from 10 % to 50 % lowers NG prevalence among FSWs, clients, and their spouses from 12.2 % to 6.4 %, 1.2 % to 0.5 %, and 0.4 % to 0.2 %, respectively. Increasing symptomatic treatment coverage among FSWs from 0 % to 100 % decreases prevalence from 10.6 % to 4.5 %, 0.8 % to 0.4 %, and 0.3 % to 0.1 %, respectively. Increasing asymptomatic treatment coverage among FSWs from 0 % to 50 % decreases prevalence from 8.2 % to 0.4 %, 0.6 % to 0.1 %, and 0.2 % to 0.0 %, respectively, with very low prevalence when coverage exceeds 50 %. In high-partner-number HSWNs, prevalence among FSWs saturates at a high level, and the vast majority of incidence occurs among clients and their spouses, with a limited impact of incremental increases in interventions. ConclusionNG epidemiology in HSWNs is typically a "fragile epidemiology" that is responsive to a range of interventions even if the interventions are incremental, partially efficacious, and only applied to FSWs.This publication was funded by the Wellcome Trust grant (208712/Z/17/Z). It was also supported by Qatar University internal grant QUCG-CAS-23/24-114. LJA and the Qatar Research Development and Innovation Council [ARG01-0522-230273].Elsevier2024-11-28T09:06:50Z2024-08-05Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1016/j.epidem.2024.100785Ayoub, H. H., Tomy, M., Chemaitelly, H., Omori, R., Buse, K., Low, N., ... & Abu-Raddad, L. J. (2024). Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study. Epidemics, 48, 100785.1755-4365https://www.sciencedirect.com/science/article/pii/S175543652400046Xhttp://hdl.handle.net/10576/61554481878-0067enhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:qspace.qu.edu.qa:10576/615542024-11-28T19:06:30Z
spellingShingle Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
Houssein H., Ayoub
Neisseria gonorrhoeae
Sex work
Female sex workers
Sexual behavior
Epidemiology
Mathematical model
status_str publishedVersion
title Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
title_full Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
title_fullStr Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
title_full_unstemmed Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
title_short Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
title_sort Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study
topic Neisseria gonorrhoeae
Sex work
Female sex workers
Sexual behavior
Epidemiology
Mathematical model
url http://dx.doi.org/10.1016/j.epidem.2024.100785
https://www.sciencedirect.com/science/article/pii/S175543652400046X
http://hdl.handle.net/10576/61554