Epidemiology Commons^™

Early Insights From A Multi-Centre National Stroke Surveillance Initiative In Tanzania, Sarah Shali Matuja, Azan Nyundo, Emmanuel Assey, Joel Bwelemo, Marieke Dekker, Sarah Urasa, Emanuel Makarius, Peter Kishimbo, Philip Adebayo, Paschal Ruggajo

Internal Medicine, East Africa

Background: Stroke is a leading cause of death and disability globally, with sub-Saharan Africa, bearing the greatest burden. Tanzania has only one active stroke registry, limiting evidence-based care and policy development. We aimed to expand the registry into a multi-centre study across eight major tertiary hospitals to generate baseline data for a national stroke registry.

Methods: From January to August 2024, we analysed de-identified data from adults (≥18 years) admitted with a World Health Organisation defined stroke. Data collected included demographics, risk factors, imaging, and in-hospital mortality. Logistic regression identified predictors of mortality.

Results: A total of 1000 patients were …

International Normative Charts For Twin Weight, Length, And Head Circumference At Birth, By Gestational Age And Sex: The Twin Neonatal Cross-Sectional Study Of The Intergrowth-21st Project, Francesca Giuliani, Sonia Deantoni, Enrico Bertino, Yasmin A. Jaffer, Manorama Purwar, Fernando C. Barros, Leila Cheikh Ismail, Wu Qingqing, Ilaria Stura, Maria Carvalho

Obstetrics and Gynaecology, East Africa

Assessing the size of twins at birth using charts developed for singletons may over diagnose small for gestational age in this sub-population. The study aimed to produce international, twin-specific, newborn size normative charts by gestational age and sex. This longitudinal observational study in eight geographically diverse settings prospectively collected data between May 2009 and August 2013 from healthy pregnant women and their newborn twins. The participants were enrolled as part of the INTERGROWTH-21st study, and recruited based on World Health Organization recommendations for evaluation of anthropometric measures. All the women met, in addition to the underlying population characteristics of low …

“Kuchoka”: Investigation Of Research Fatigue In Mosoriot, Kenya, Felishana Cherop, Violet Naanyu, Juddy Wachira, Lukoye Atwoli

Internal Medicine, East Africa

Background: Health research is key to the promotion of population and community health, however, conducting many research studies in a community can cause research fatigue.

Purpose: We determined the prevalence of research fatigue and associated factors in Mosoriot, Kenya.

Methods: We conducted a cross-sectional study in the Mosoriot community from Wednesday 28, May 2014, to Thursday 30, April 2015, involving (n = 327) community members who were randomly sampled to respond to self-administered and/or guided questionnaires. We analyzed descriptive statistics to summarise the data and used the Pearson Chi-Square test to assess the bivariate associations between the …

A Systematic Review Of Disparities In Alzheimer’S Diagnosis: The Overlooked Impact Of Gender And Ethnoracial Diversity On Biomarker Expression, Cynthia Smith, Olisaemeka Ogbue, Nasra Gathoni, Karen Blackmon, Tamlyn J. Watermeyer, Jasmit Shah, Chinedu Momoh

Brain and Mind Institute

Background: Biomarkers hold significant promise for the early diagnosis of dementias like Alzheimer's disease (AD). However, less than 5% of research data originates from Black African or African American populations, despite Africa's increasing dementia burden. Additionally, women are disproportionately affected by dementia globally, a trend that is expected to persist. This systematic review aims to synthesize studies on sex and gender differences in AD biomarkers, with a focus on African populations.

Method: We have conducted systematic searches across PubMed, Scopus, Web of Science, SciELO, and African journals online for articles published between 2000 and 2024. Our focus is …

Optimal Anthropometric Discharge Criteria From Treatment Of Wasting: Meta-Analysis Of Individual Patient Data From 34 Studies, Lilia Bliznashka, Sandhya Chaudhary, Susan Rattigan, Sheila Isanaka, Ruth Adah, Tahmeed Ahmed, Nur Alam, Rodrigue Alitanou, Paluku Bahwere, Helen Nabwera

Paediatrics and Child Health, East Africa

Background: Community-based treatment of acute malnutrition saves lives, but recovered children remain at risk of relapse post-discharge. Strategies to reduce this risk may include modification of anthropometric discharge criteria.

Objectives: This study aims to compare the diagnostic accuracy of anthropometric indices to reduce post-discharge relapse risk.

Methods: We searched PubMed from inception to June 2022. We included studies that enrolled children aged 0–59 mo successfully treated for severe or moderate acute malnutrition (SAM or MAM), assessed anthropometry at discharge, and had ≥1 follow-up assessment ≤6 mo post-discharge. Pooled sensitivity and specificity for anthropometric indices at discharge over multiple cutoffs were …

Assessing Neurocognitive Functioning Among Adults Ageing With And Without Hiv At The Kenyan Coast: Measurement Issues And Correlates, Patrick Nzivo Mwangala, Carophine Nasambu, Ryan Wagner, Mihaela Duta, Gaia Scerif, Charles Newton, Amina Abubakar

Institute for Human Development, East Africa

Background: Cognitive impairment is one of the most prevalent complications of HIV infection, with significant medical and functional impacts. However, valid, and reliable assessment tools are lacking for the newly emergent ageing population of people living with HIV (PLWH) in many parts of sub-Saharan Africa (SSA), including Kenya. Without these tools, critical intervention opportunities, e.g., psychoeducation, treatment and additional support, are missed. To bridge this gap in Kenya, we adapted the Oxford Cognitive Screen Plus (OCSPlus), a tablet-based cognitive assessment tool designed for low-literacy settings, with adults ageing with HIV ≥ 50 years and their uninfected peers. This study examines …

Awareness And Usability Of Community And Facility-Based Health Sector Client Feedback Mechanism In Tanzania Public Health System. A Mixed Methods Study, James Kengia, Pius Kagoma, Ally Kinyaga, Helga Mutasingwa, Simon Debere, Robert Smith, Marcos Mzeru, Rashid Mbunda, Claud Kumalija, Paschal Ruggajo

Internal Medicine, East Africa

Background Client feedback systems are increasingly becoming important in person-centered health care. The systems provide opportunities to the public to interact with the health care providers and policymakers, present their concerns related to the performance of the health care system in order to improve the quality, equity, and responsiveness in the provision of services, hence increase social accountability. This study aimed to assess the situation of client feedback systems in Tanzania, focusing on the awareness and usability of existing facility- and community-based feedback platforms from the client’s perspective.

Methods The study employed a concurrent mixed-method design using both quantitative and …

Reassessing Dementia Risk: Expanding The 2024 Lancet Commission Report For A More Accurate Global Understanding, Cyprian Mostert

Brain and Mind Institute

Background: The 2024 Lancet Commission Report analyzes 14 risk factors thataccount for 45 percent of global dementia cases. However, it overlooks four criticalrisk factors: poverty, wealth shocks, income inequality, and viral infections. This isparticularly concerning given that 57 percent of the identified risk factors in theLancet report are more prevalent in men, even though dementia predominantly affectswomen worldwide.

Method: In this policy paper, we used the recent global review studies and argue that itis essential to recalibrate and expand the 2024 Lancet Commission’s list of risk factorsto include poverty, wealth shocks, income inequality, and viral infections. Our analysissuggests that these …

Clinical Phenotypes Of Motor Neurone Disease In A Kenyan Hospital-Based Population, Effie Nailah Kamadi, Jasmit Shah, Juzar Hooker, Thomas Jenkins, Dilraj Sokhi

Internal Medicine, East Africa

Background: Motor neurone disease (MND) presentation is globally heterogenous and data on the clinical phenotype in Sub-Saharan Africa (SSA) is scarce. We sought to address this by describing the profile of MND patients in a Kenyan hospital-based population.

Methods: The medical charts of all adult MND patients assessed in the facility between January 2010 and December 2023 were retrospectively reviewed. The biographical data and clinical features of these patients were captured from their electronic and manual health records and statistical analysis performed.

Results: In total, 160 patients had their data analyzed. The male to female ratio was 1.76:1. The median …

Implementation And Evaluation Of Infection Prevention And Control Training In Sub-Saharan Africa, David Odada, James Ndai, Ruth Thuku, Philip Adebayo

Internal Medicine, East Africa

No abstract provided.

Examining Gender And Ethnic Disparities In Scientific Authorship To Promote A Culture Of Equity, Diversity And Inclusion At A University School Of Public Health, Paula Christen, Julia Michalow, Tristan Naidoo, Hillary Topazian, Sabine An Elsland, Abeer Arif, Marc Baguelin, Gemma Clunie, Sarah Essilfie-Quaye, Chinedu Momoh

Brain and Mind Institute

In public health research, diverse perspectives are vital to identify biases that homogenous teams might miss. Since publication metrics influence career progression, we investigated publication rate disparities within a School of Public Health. We analysed 18 322 peer-reviewed publications by 513 affiliated researchers between 2014 and 2023 using multivariable regression models and network analysis to assess the impact of gender, ethnicity, job level and centrality in the School’s research network on publication rates. We found a persistent gender gap in publication rates across job levels and ethnicities, with men publishing more than women (incidence rate ratio 1.30, 95% confidence interval …

Acceptability, Feasibility And Preliminary Evaluation Of The Who Caregiver Skills Training For Children With Developmental Disabilities In Rural And Urban Kenya, Amina Abubakar, Eva Mwangome, Paul Mwangi, Vibian Angweny, Martha Kombe, Rachel Mapenzi, Patricia Kipkemoi, Patricia Kipkemoi, Beatrice Mkubwa, Silas Onyango

Institute for Human Development, East Africa

Background Interventions to improve the developmental outcomes of children with developmental disabilities (DDs) in low-resourced settings such as Kenya are limited. The WHO caregiver skills training (CST) was developed to address social and communication needs of children with DDs through caregiver-mediated engagement strategies. This study investigated CST’s acceptability, feasibility and evaluated its effect on behavioural, communication and quality of life outcomes for children with DDs and their caregivers in Kenya.

Methods The settings were rural Kilifi and Korogocho informal settlement in Nairobi, Kenya. A sequential mixed-methods design consisting of three phases. First, CST materials translation to Swahili, stakeholder consultations and …

Age-Specific Distribution Of Cervical Precancer And Cancer Among Women Living With Hiv Across Seven Countries: A Systematic Review And An Individual Patient Data Meta-Analysis, Shona Dalal, Karin Sundström, Ronaldo Silva, Katayoun Taghavi, Helen Cejtin, Michael Chung, Sharon Greene, Smita Joshi, Helen Kelly, Elkanah Orang'o

Obstetrics and Gynaecology, East Africa

Background Women living with HIV have an elevated risk for cervical cancer, present earlier, and have more recurrent human papillomavirus (HPV) infections compared with women without HIV. To update WHO recommendations on screening and treatment to prevent cervical cancer, we aimed to identify whether women living with HIV should be screened for cervical cancer at a specific age, the optimal screening interval following a negative cervical screen, and the screening interval following treatment.

Methods We conducted a systematic literature review on cervical cancer and HIV by searching MEDLINE, Embase, CENTRAL, the Cochrane Library, and clinical trial registries covering Jan 1, …

Food Insecurity Is Associated With Depressive And Anxiety Symptoms Among Caregivers Of Young Children In Arid And Semi-Arid Regions Of Kenya: A Cross-Sectional Study, Esther Chongwo, Daisy Chelangat, Eunice Njoroge, Barack Aoko, Martha Kaniala, Moses Wesala, Phillis Magoma, Joyce Marangu, Margaret Kabue, Daniel Rabok

Institute for Human Development, East Africa

Introduction: This study fills a critical gap by assessing the prevalence and association between food insecurity and depressive and anxiety symptoms among caregivers of young children in Kenya's arid and semi-arid lands (ASALs).

Methods: A cross-sectional design was used to collect data from caregivers of children aged 0–3 years from Lamu, Isiolo and Turkana Counties (N = 446). Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7 scales were used to assess depressive and anxiety symptoms, respectively. We also administered the Household Food Insecurity Access Scale, alongside sociodemographic and health-related questionnaires.

Results: The mean caregiver age was 29.37 years …

Evaluating The Impact Of Alcohol On Dementia: Evidence From 13 Developing Countries, Cyprian Mostert

Brain and Mind Institute

Background: The 2024 Lancet Commission on Dementia Prevention identified alcoholconsumption as a risk factor contributing to a global increase in dementia cases by onepercent.

Method: We used a panel VAR model to analyze the impact of alcohol consumption ondementia prevalence in 13 developing countries with different alcohol tax systems.

Result: In countries with progressive alcohol tax systems, an increase in taxes onbeer and spirits leads to a 10 percent reduction in per capita alcohol consumption.This decline corresponds to a 4 percent reduction in dementia prevalence within fouryears. In countries with hybrid alcohol tax systems, a combination of alcohol bansand tax …

Factors Associated With Cervical Cancer Screening Among Women Attending Maternal Child Health Clinics In Kenya, Loise Nthambi, Marleen Temmerman, William Macharia, Joshua Nyagol, Sophia Mogere, Jillian Neary, Edward Nyabs, Janet Itindi, Agnes Langat, Evelyn Wangari

Centre of Excellence in Women and Child Health

Background Cervical cancer is the second leading malignancy in incidence among women in sub-Saharan Africa. Early detection through screening and treatment of pre-cancerous cervical lesions is paramount in preventing cervical cancer. We sought to examine factors associated with ever being screened for cervical cancer among women attending infant immunization clinics in Kenya.

Methods We conducted secondary data analysis from a cross-sectional survey that enrolled mother-infant pairs attending 55 infant immunization clinics in Kenya between 2018 and 2019. Clinics were selected from high and medium/low HIV-burden counties using probability-proportionate-to-size sampling. The primary outcome was self-reported cervical cancer screening. To align with …

Impact Of Covid-19 Pandemic On Quality Of Life, Anxiety, Connections To Friends, And Access To Resources Among People With Hiv: Using The Social Ecological Model, Carol Dawson-Rose, Christine Davey, Emily Huang, Laura Cox, Phillips Craig, Motshedisi Sabone, Lufuno Makhado, Emilia Iwu, Kathleen Fitch, Sheila Shaibu

School of Nursing & Midwifery, East Africa

The purpose of this study was to understand the impact of the coronavirus disease 2019 (COVID-19) pandemic and mitigation efforts on health and social outcomes for people with HIV at the individual, social, and structural levels of the Social Ecological Model. The International Nursing Network for HIV collected data for a cross-sectional survey of people with HIV in Botswana, Canada, Colombia, Hong Kong, Kenya, Nigeria, South Africa, Thailand, and the United States from August 2021 through June 2023. Among 1,400 participants, 47.5% experienced decreased quality of life, 40.9% experienced increased anxiety, 33.0% had reduced connection with friends, and 38.8% had …

Broadening Dementia Risk Models: Building On The 2024 Lancet Commission Report For A More Inclusive Global Framework, Cyprian Mostert, Chinedu Momoh, Andrea Winkler, Connor Mclaughlin, Harris Eyre, Mohamed Salama, Levi Muyela, Karen Blackmon, Zul Merali, Kirti Ranchod

Brain and Mind Institute

No abstract provided.

Influence Of Institutional Support And Organisational Culture On Hiv And Ncd Integration, David Njuguna, Caroline Kyalo, Eunice Muthoni, Daniel Mwai, Elvis Kirui, Wesley Rotich, Joy Mugambi, James Waweru, Nelson Muriu, Easter Olwanda

Population Health, East Africa

Background: The integration of services for human immunodeficiency virus (HIV) and noncommunicable diseases (NCDs) has gained increasing attention in recent years because of the overlapping prevalence and shared risk factors between these health conditions. However, successful integration requires more than just the alignment of clinical practices. The role of institutional support and organisational culture in promoting effective integration remains an underexplored area.

Aim: This study aims to fill this gap by examining how institutional structures and organisational values influence the integration of HIV and NCD care.

Setting: The study setting was Nakuru County in Kenya.

Methods: …

Weight Loss Remains A Challenge For Idiopathic Intracranial Hypertension Patients: A Retrospective Case Series From Kenya, Zian Muikamba, Jaskirat Sokhi, Jasmit Shah, Sheila Marco, Juzar Hooker, Dilraj Sokhi

Internal Medicine, East Africa

Background Idiopathic intracranial hypertension (IIH) is a neurological condition characterized by elevated intracranial CSF pressure without demonstratable evident causes. The mechanisms leading to a particular predilection for women of childbearing age who are overweight and obese or who have recent rapid weight changes remain imprecisely described. If undiagnosed, it can progress to disabling irreversible visual loss. Weight loss is useful in addition to medical therapy in treating the condition. There is a rise of obesity in sub-Saharan Africa (SSA) but there is little published on IIH.

Methods We conducted a retrospective cross-sectional study at our tertiary regional referral neurology centre …

Unnoticed Early Pregnancy During Myomectomy With Favorable Outcome: Case Report, Ronak Mulji, Lusajo Mwagobele, Farhat Seif, Zainab Fidaali, Munawar Kaguta

Obstetrics and Gynaecology, East Africa

Introduction

Uterine fibroids are a common cause of infertility, and myomectomy remains a key surgical intervention to improve reproductive outcomes. However, the occurrence of an undetected pregnancy during myomectomy is rare and poses significant clinical risks.

Case Presentation

We report a 34-year-old woman, nulliparous with a history of secondary infertility and three first-trimester miscarriages. She had multiple fibroids and was managed for polycystic ovarian syndrome and hyperprolactinemia. Scheduled for abdominal myomectomy, the surgery proceeded uneventfully, with six fibroids removed and no breach of the endometrial cavity. Five weeks postoperatively, she presented with symptoms suggestive of early pregnancy. Ultrasound confirmed a …

Cervical Hpv 18 Detection Is Associated With High-Grade Cervical Dysplasia In Kenyan And Ugandan Women Living With Hiv, Miriam Nakalembe, Collins Mpamani, Jane Namugga, Carolyn Nakisige, Grace Banturaki, Phillip Tonui, Peter Itsura, Omenge Orango, Kapten Muthoka, Anthony Ngeresa

Obstetrics and Gynaecology, East Africa

Objectives Cervical cancer, caused by “high-risk” (HR) HPV, is the most common malignancy and the leading cause of cancer deaths among women living in Kenya and Uganda. Women living with HIV (WLWH) are at a high risk for HR-HPV infection. This longitudinal, observational cohort analysis was conducted to identify factors that are important among WLWH in prediction of cervical intraepithelial neoplasia grades 2 or 3 (CIN2/3).

Methods Data of this analysis was based on a study of HPV natural history and cervical cancer among Kenyan and Ugandan WLWH. Demographic, behavioral and biological data were collected; HR-HPV DNA testing of cervical …

Cervical Hpv 18 Detection Is Associated With High-Grade Cervical Dysplasia In Kenyan And Ugandan Women Living With Hiv, Miriam Nakalembe, Collins Mpamani, Jane Namugga, Carolyn Nakisige, Grace Banturaki, Phillip Tonui, Peter Itsura, Elkanah Orang'o, Kapten Muthoka, Anthony Ngeresa

Obstetrics and Gynaecology, East Africa

Objectives Cervical cancer, caused by “high-risk” (HR) HPV, is the most common malignancy and the leading cause of cancer deaths among women living in Kenya and Uganda. Women living with HIV (WLWH) are at a high risk for HR-HPV infection. This longitudinal, observational cohort analysis was conducted to identify factors that are important among WLWH in prediction of cervical intraepithelial neoplasia grades 2 or 3 (CIN2/3).

Methods Data of this analysis was based on a study of HPV natural history and cervical cancer among Kenyan and Ugandan WLWH. Demographic, behavioral and biological data were collected; HR-HPV DNA testing of cervical …

Growth Measurements In Ugandan Children With Sickle Cell Anaemia From A Hydroxyurea (Hydroxycarbamide) Treatment Trial Relative To Unaffected Sibling Controls, Dennis Kalibbala, Vincent Mboizi, Grace Nambatya, Susan Murungi, Joan Ashaba, Catherine Nabaggala, Lynnth Turyagyenda, Deogratias Munube, Phillip Kasirye, Robert Opoka

Paediatrics and Child Health, East Africa

No abstract provided.

Prevalence And Risk Factors Of Hypertension Among Clients Seeking Care At Selected Healthcare Facilities In Kenya, Jasmit Shah, Soraiya Manji, Jamila Nambafu, Cynthia Smith, Anthony Ochola, Linda Barasa, Faraj Amir, Husni Abdalla, Rajiv Patel, Sayed Karar

Internal Medicine, East Africa

Background Hypertension remains one of the primary risk factors for cardiovascular disease and the leading cause of mortality worldwide. According to the World Health Organization (WHO), as estimated 1.28 billion adults suffer from hypertension worldwide and approximately half are unaware of the problem. This study aimed to explore the prevalence of hypertension, and the association of sociodemographic, behavioral, and physiological factors related to hypertension in patients seeking care at the different healthcare facilities in Kenya.

Methodology We carried out a cross-sectional survey study between April 2023 and July 2023. The general adult public visiting the outpatient clinics were recruited from …

Low Prevalence Of Helminth Infection In Ugandan Children Hospitalized With Severe Malaria, Drew Capone, Nuzrath Jahan, Ruth Namazzi, Robert Opoka, Chandy John

Paediatrics and Child Health, East Africa

Co-infection by intestinal helminths and Plasmodium spp. may be common in endemic communities. In 2003, Uganda instituted a national deworming program, with anti-helminth medication provided twice annually to children 6 months to 5 years of age, but few follow-up studies have been conducted. Several studies have identified a relationship between helminth infection, Plasmodium spp. infection and malaria severity. However, the relationship is not well defined, and results are inconclusive. We analyzed 177 stool samples from a cohort of children with severe malaria enrolled in two hospitals in Uganda from 2014–2017. All children were 6 months to 48 months of age …

Platelet Transfusion Practices In The Icu: A Prospective Multicenter Cohort Study, Van Stefan, Raasveld Jorinde, Andrew Flint, Jimmy Schenk, Claudia Van Den Oord, Merijn Reuland, Sanne De Bruin, Jan Bakker, Maurizio Cecconi,, Marcus Lance

Anaesthesiology, East Africa

Objective: There is a lack of comprehensive international data regarding platelet transfusion practices in the ICU. This study aimed to evaluate the current occurrence rate of platelet transfusion in the ICU and provide an overview of platelet transfusion practices including indications for a platelet transfusion, thresholds, (non-)adherence and geo-economic region variations.

Design: International prospective cohort study.

Setting: Two hundred thirty-three centers in 30 countries worldwide.

Patients: All patients 18 years old and older, admitted to the ICU during a single study week, selected by each site from one of the 16 predefined weeks (March 2019 to …

The Relationships Between Sporadic And Repetitive Non-Suicidal Self-Injury And Mental Disorders Among First-Year College Students: Results From The World Mental Health International College Student Initiative, Penelope Hasking, Glenn Kiekens, Maria Petukhova, Yesica Albor, Ahmad Al-Hadi, Jordi Alonso, Nouf Al-Saud, Yasmin Altwaijri, Claes Andersson, Lukoye Atwoli

Brain and Mind Institute

Background: Non-suicidal self-injury (NSSI) is associated with mental disorders, yet work regarding the direction of this association is inconsistent. We examined the prevalence, comorbidity, time–order associations with mental disorders, and sex differences in sporadic and repetitive NSSI among emerging adults.

Methods: We used survey data from n = 72,288 first-year college students as part of the World Mental Health-International College Student Survey Initiative (WMH-ICS) to explore time–order associations between onset of NSSI and mental disorders, based on retrospective age-of-onset reports using discrete-time survival models. We distinguished between sporadic (1–5 lifetime episodes) and repetitive (≥6 lifetime episodes) NSSI in …

Patients´ Characteristics And Six-Month Outcomes Of Patients With Atrial Fibrillation In Kenya: A Retrospective Observational Cohort Study From The National Cardiovascular Registry, Salim Abdallah, Jasmit Shah, Anders Barasa, Felix Barasa, Benard Gitura, Mzee Ngunga

Internal Medicine, East Africa

Introduction: atrial fibrillation is increasingly diagnosed in Kenya due to the persistence of rheumatic heart disease and the rising burden of cardiovascular risk factors. We aim to describe the baseline, clinical, treatment characteristics, and six-month outcomes of patients diagnosed with atrial fibrillation in Kenya.

Methods: a retrospective observational cohort study design was employed. Data were obtained from three Kenyan referral hospitals, including public and private institutions. Baseline and six-month data were collected. Depending on the type of variable, data were summarized descriptively.

Results: two hundred forty participants were enrolled, with a median age of 59.0 (IQR: 42.0-75.8). …

Induction Of An Early Ifn-Γ Cellular Response And High Plasma Levels Of Sdf-1Α Are Inversely Associated With Covid-19 Severity And Residence In Rural Areas In Kenyan Patients, Perpetual Wanjiku, Benedict Orindi, John Kimotho, Shahin Sayed, Reena Shah, Mansoor Saleh, Viviane Olouch, Ann Karanu, Jasmit Shah, Zaitun Nneka

Pathology, East Africa

Introduction COVID-19 was less severe in Sub-Saharan Africa (SSA) compared with Europe and North America. It is unclear whether these differences could be explained immunologically. Here we determined levels of ex vivo SARS-CoV-2 peptide-specific IFN-γ producing cells, and plasma cytokines and chemokines over the first month of COVID-19 diagnosis among Kenyan COVID-19 patients from urban and rural areas.

Methods Between June 2020 and August 2022, we recruited and longitudinally monitored 188 COVID-19 patients from two regions in Kenya, Nairobi (urban, n=152) and Kilifi (rural, n=36), with varying disease severity – severe, mild/moderate, and asymptomatic. IFN-γ secreting cells were enumerated at …