Charity Oga-Omenka

Research

Antibiotic Dispensing Antibiotic Stewardship Antimicrobial Resistance Educational Intervention Global Health Pharmacists Standardized Patients

Latest papers

Reciprocity in global health: How successes from the global south can inform global health interventions in Canada and the U.S.
PLOS global public health · 2026 · senior author
Multilevel factors associated with self-reported sexually transmitted infections among sexually active women in Africa: a socio-ecological analysis.
BMC public health · 2026 · senior author
Antibiotic dispensing practices and determinants among informal healthcare providers in low- and middle-income countries: a mixed-methods scoping review.
BMJ global health · 2026

All 35 publications

Latest funding

Antimicrobial stewardship among private sector healthcare providers in Nigeria
CIHR · 2025 · Supervisor
$6,000
Antibiotic STewardship Education for Pharmacists (A-STEP): a pre-post intervention study in Nigeria
CIHR · 2024 · Nominated PI
$814,726
Developing a global framework to address gender-based violence in women affected by TB
SSHRC · 2024 · Co-investigator
$52,640

All 3 grants and awards

35 publications.

01

Reciprocity in global health: How successes from the global south can inform global health interventions in Canada and the U.S.

Masvawure TB, Ndu M, Oga-Omenka C

PLOS global public health2026Senior author

DOI: 10.1371/journal.pgph.0007208 PMID: 42658800

02

Multilevel factors associated with self-reported sexually transmitted infections among sexually active women in Africa: a socio-ecological analysis.

Armah-Ansah EK, Budu E, Dorgbetor CI, Tweneboah R, Ladzro LF, Igonya EK, Otchi EH, Oga-Omenka C

BMC public health2026Senior author

DOI: 10.1186/s12889-026-28423-9 PMID: 42426683

03

Antibiotic dispensing practices and determinants among informal healthcare providers in low- and middle-income countries: a mixed-methods scoping review.

Thapa P, Tandan M, Bhandari B, Gandra S, Timalsina D, Thapaliya S, Bhusal A, Bohora S, Gore G, Oga-Omenka C, Asadullah M, Shukla P, Joshi C, Sheokand S, Dutta M, Rahimi SA, Pai M, Sulis G

BMJ global health2026

DOI: 10.1136/bmjgh-2025-023208 PMID: 42373214

04

Delays in tuberculosis diagnosis and treatment in India: A patient journey analysis from Mumbai and Patna during the COVID-19 Pandemic.

Kafi MAH, Thapa P, Pai M, Oga-Omenka C

PLOS global public health2026Senior author

DOI: 10.1371/journal.pgph.0007214 PMID: 42748166

05

Prevalence and risk factors of home delivery among rural women: evidence from 28 African countries.

Armah-Ansah EK, Okeke-Obayemi D, Okeke S, Budu E, Oga-Omenka C, Ameyaw EK

Reproductive health2026

DOI: 10.1186/s12978-026-02386-x PMID: 42321838

06

Under fire, unyielding: tripling down on public accountability and intersectional solidarity for global health equity.

Mac-Seing M, Oga-Omenka C, Liu J

Global health promotion2026

DOI: 10.1177/17579759261451153 PMID: 42406338

07

Bajo presión, pero firmes: redoblar los esfuerzos por una rendición pública de cuentas y una solidaridad interseccional en favor de la equidad en salud mundial.

Mac-Seing M, Oga-Omenka C, Liu J

Global health promotion2026

DOI: 10.1177/17579759261454255 PMID: 42406337

08

Résister dans la tourmente : unir nos forces en faveur de la responsabilité publique et de la solidarité intersectionnelle pour l'équité en santé mondiale.

Mac-Seing M, Oga-Omenka C, Liu J

Global health promotion2026

DOI: 10.1177/17579759261454254 PMID: 42290173

09

Rethinking health-care systems to tackle social isolation and frailty.

Mehrabi F, Pomeroy ML, Hoogendijk EO, Cudjoe TKM, Oremus M, Bandeen-Roche K, Oga-Omenka C

The Lancet. Public health2026Senior author

DOI: 10.1016/s2468-2667(25)00324-x PMID: 41662853

10

Understanding where people with tuberculosis seek care to serve them better.

Oga-Omenka C, Rabvukwa A, Chijioke-Akaniro O, Mwirigi N, Pai M

Lancet (London, England)2026First author

DOI: 10.1016/s0140-6736(26)00543-x PMID: 41871594

Antimicrobial stewardship among private sector healthcare providers in Nigeria

SupervisorCIHR2025Undergraduate Student Research Awards (USRA)

Principal investigators: Oghenerobor, Adese

Keywords: Antibiotic Misuse; Antimicrobial; Health; Low Income; Nigeria; Resistance

$6,000

Antibiotic STewardship Education for Pharmacists (A-STEP): a pre-post intervention study in Nigeria

Nominated PICIHR2024Project Grant

Principal investigators: Oga-Omenka, Charity; Sulis, Giorgia

Keywords: Antibiotic Dispensing; Antibiotic Stewardship; Antimicrobial Resistance; Educational Intervention; Global Health; Pharmacists; Standardized Patients

$814,726

Developing a global framework to address gender-based violence in women affected by TB

Co-investigatorSSHRC2024Partnership Development Grants

Principal investigators: Daftary, Amrita

Keywords: gender based violence; social equity; tuberculosis; global health; community engagement; social ecological model

$52,640

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

School of Public Health Sciences
Medicine
School of Epidemiology and Public Health
Social & Behavioural Health Sciences Division
Infectious Diseases
Other

Co-authors at University of Waterloo, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Giorgia Sulis

School of Epidemiology and Public Health

4 shared papers, latest 2026

Mark Oremus

School of Public Health Sciences

3 shared papers, latest 2026

Warren Dodd

School of Public Health Sciences

2 shared papers, latest 2026

Andrea Benedetti

Infectious Diseases

1 shared papers, latest 2024

Amrita Daftary

Social & Behavioural Health Sciences Division

1 shared papers, latest 2025

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2024

Subject: Prospective PhD student: Antibiotic Dispensing Dear Professor Oga-Omenka, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Reciprocity in global health: How successes from the global south can inform global health interventions in Canada and the U.S." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "Antibiotic STewardship Education for Pharmacists (A-STEP): a pre-post intervention study in Nigeria" (2024), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]

Charity Oga-Omenka

Research

Latest papers

Latest funding

Reciprocity in global health: How successes from the global south can inform global health interventions in Canada and the U.S.

Multilevel factors associated with self-reported sexually transmitted infections among sexually active women in Africa: a socio-ecological analysis.

Antibiotic dispensing practices and determinants among informal healthcare providers in low- and middle-income countries: a mixed-methods scoping review.

Delays in tuberculosis diagnosis and treatment in India: A patient journey analysis from Mumbai and Patna during the COVID-19 Pandemic.

Prevalence and risk factors of home delivery among rural women: evidence from 28 African countries.

Under fire, unyielding: tripling down on public accountability and intersectional solidarity for global health equity.

Bajo presión, pero firmes: redoblar los esfuerzos por una rendición pública de cuentas y una solidaridad interseccional en favor de la equidad en salud mundial.

Résister dans la tourmente : unir nos forces en faveur de la responsabilité publique et de la solidarité intersectionnelle pour l'équité en santé mondiale.

Rethinking health-care systems to tackle social isolation and frailty.

Understanding where people with tuberculosis seek care to serve them better.

Antimicrobial stewardship among private sector healthcare providers in Nigeria

Antibiotic STewardship Education for Pharmacists (A-STEP): a pre-post intervention study in Nigeria

Developing a global framework to address gender-based violence in women affected by TB

Frequent collaborators

Madhukar Pai

Giorgia Sulis

Joanne Liu

Mark Oremus

Warren Dodd

Andrea Benedetti

Andrea Benedetti

Simon Grandjean Lapierre

Amrita Daftary

Charity Oga-Omenka

Research

Latest papers

Latest funding

Reciprocity in global health: How successes from the global south can inform global health interventions in Canada and the U.S.

Multilevel factors associated with self-reported sexually transmitted infections among sexually active women in Africa: a socio-ecological analysis.

Antibiotic dispensing practices and determinants among informal healthcare providers in low- and middle-income countries: a mixed-methods scoping review.

Delays in tuberculosis diagnosis and treatment in India: A patient journey analysis from Mumbai and Patna during the COVID-19 Pandemic.

Prevalence and risk factors of home delivery among rural women: evidence from 28 African countries.

Under fire, unyielding: tripling down on public accountability and intersectional solidarity for global health equity.

Bajo presi&#xf3;n, pero firmes: redoblar los esfuerzos por una rendici&#xf3;n p&#xfa;blica de cuentas y una solidaridad interseccional en favor de la equidad en salud mundial.

R&#xe9;sister dans la tourmente : unir nos forces en faveur de la responsabilit&#xe9; publique et de la solidarit&#xe9; intersectionnelle pour l'&#xe9;quit&#xe9; en sant&#xe9; mondiale.

Rethinking health-care systems to tackle social isolation and frailty.

Understanding where people with tuberculosis seek care to serve them better.

Antimicrobial stewardship among private sector healthcare providers in Nigeria

Antibiotic STewardship Education for Pharmacists (A-STEP): a pre-post intervention study in Nigeria

Developing a global framework to address gender-based violence in women affected by TB

Frequent collaborators

Madhukar Pai

Giorgia Sulis

Joanne Liu

Mark Oremus

Warren Dodd

Andrea Benedetti

Andrea Benedetti

Simon Grandjean Lapierre

Amrita Daftary

Bajo presión, pero firmes: redoblar los esfuerzos por una rendición pública de cuentas y una solidaridad interseccional en favor de la equidad en salud mundial.

Résister dans la tourmente : unir nos forces en faveur de la responsabilité publique et de la solidarité intersectionnelle pour l'équité en santé mondiale.