Mohamed Ghaith Al‐Kuwari
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View article: Effectiveness and durability of a fourth dose of ancestral-strain mRNA vaccines against SARS-CoV-2 infection: a nationwide matched cohort study in Qatar
Effectiveness and durability of a fourth dose of ancestral-strain mRNA vaccines against SARS-CoV-2 infection: a nationwide matched cohort study in Qatar Open
Concerns about waning immunity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the emergence of new variants underscore the need for booster doses. Using a matched cohort design, this study evaluated the …
View article: Comparative Cardiovascular Risk Index AcrossAutoimmune Conditions in a Large Middle-East HealthSystem
Comparative Cardiovascular Risk Index AcrossAutoimmune Conditions in a Large Middle-East HealthSystem Open
Autoimmune diseases confer excess cardiovascular disease (CVD) risk, yet comparative profiles across phenotypes in Gulf health systems are unclear. Using routinely collected primary-care records, we analyzed 14,616 adults and derived a com…
View article: Adverse events of COVID-19 vaccines: Insights from primary health care centers in Qatar
Adverse events of COVID-19 vaccines: Insights from primary health care centers in Qatar Open
Introduction: The COVID-19 pandemic has had a profound impact on global health, with millions of confirmed cases and deaths. Vaccination is crucial in curbing the spread of the virus and mitigating severe outcomes. However, the swift devel…
View article: Bridging The Terminology Gap: Rebranding Community Medicine as Preventive Medicine in Qatar
Bridging The Terminology Gap: Rebranding Community Medicine as Preventive Medicine in Qatar Open
View article: Evaluating Hospital Admission Data as Indicators of COVID-19 Severity: A National Assessment in Qatar
Evaluating Hospital Admission Data as Indicators of COVID-19 Severity: A National Assessment in Qatar Open
Background Accurately assessing SARS-CoV-2 infection severity is essential for understanding the health impact of the infection and evaluating the effectiveness of interventions. This study investigated whether SARS-CoV-2–associated hospit…
View article: OD19 Future Health And Economic Burden Of Cardiovascular Disease In Type 2 Diabetes In Qatar, From 2023 To 2032
OD19 Future Health And Economic Burden Of Cardiovascular Disease In Type 2 Diabetes In Qatar, From 2023 To 2032 Open
Introduction The Middle East and North Africa region accounts for the largest prevalence of type 2 diabetes (T2D). Qatar ranks top 10 for global T2D prevalence, with 17 percent in 2022. Also, 50 to 70 percent of the cardiovascular events o…
View article: Prevalence of syphilis infection among migrant workers in Qatar: a nationwide cross-sectional survey
Prevalence of syphilis infection among migrant workers in Qatar: a nationwide cross-sectional survey Open
Objectives Scant data are available on syphilis infection within migrant populations worldwide and in the population of the Middle East and North Africa region. This study investigated the prevalence of both lifetime and recent syphilis in…
View article: BNT162b2 Versus mRNA‐1273 Vaccines: Comparative Analysis of Long‐Term Protection Against SARS‐CoV‐2 Infection and Severe COVID‐19 in Qatar
BNT162b2 Versus mRNA‐1273 Vaccines: Comparative Analysis of Long‐Term Protection Against SARS‐CoV‐2 Infection and Severe COVID‐19 in Qatar Open
Background This study provides a head‐to‐head comparison of the protection provided by the BNT162b2 and mRNA‐1273 vaccines against SARS‐CoV‐2 infection and against severe COVID‐19, covering primary series and third dose/booster vaccination…
View article: Assessing Healthy Vaccinee Effect in COVID-19 Vaccine Effectiveness Studies: A National Cohort Study in Qatar
Assessing Healthy Vaccinee Effect in COVID-19 Vaccine Effectiveness Studies: A National Cohort Study in Qatar Open
Background This study investigated the presence of the healthy vaccinee effect—the imbalance in health status between vaccinated and unvaccinated individuals—in two COVID-19 vaccine effectiveness studies involving primary series and booste…
View article: Prevalence of hepatitis B and C viruses among migrant workers in Qatar
Prevalence of hepatitis B and C viruses among migrant workers in Qatar Open
Limited data exist on viral hepatitis among migrant populations. This study investigated the prevalence of current hepatitis B virus (HBV) infection and lifetime hepatitis C virus (HCV) infection among Qatar's migrant craft and manual work…
View article: Nutritional interventions and BMI dynamics: A comprehensive analysis of growth outcomes in pediatric populations
Nutritional interventions and BMI dynamics: A comprehensive analysis of growth outcomes in pediatric populations Open
Introduction: This review article emphasizes the significance of Body Mass Index (BMI) and insulin-like growth factor-1 (IGF1) in evaluating pediatric growth outcomes, particularly for those at risk of undernutrition. The review explores t…
View article: Effectiveness of two and three doses of COVID-19 mRNA vaccines against infection, symptoms, and severity in the pre-omicron era: A time-dependent gradient
Effectiveness of two and three doses of COVID-19 mRNA vaccines against infection, symptoms, and severity in the pre-omicron era: A time-dependent gradient Open
A gradient in vaccine effectiveness exists and is linked to the symptoms and severity of infection, providing higher protection against more symptomatic and severe cases. This gradient intensifies over time as vaccine immunity wanes after …
View article: Short-term side effects of BNT162b2 vaccine in primary care settings in Qatar: a retrospective study
Short-term side effects of BNT162b2 vaccine in primary care settings in Qatar: a retrospective study Open
Background Despite the established effectiveness of the BNT162b2 Vaccine, the novel technology demands careful safety monitoring. While global studies have explored its safety, local data remains limited and exhibits some variability. This…
View article: Protection of natural infection against reinfection with SARS-CoV-2 JN.1 variant
Protection of natural infection against reinfection with SARS-CoV-2 JN.1 variant Open
Overall effectiveness of infection in preventing reinfection with SARS-CoV-2 JN.1 variant was estimated at 1.8% (95% CI: −9.3to 12.6%), and demonstrated rapid decline over time since the previous infection, decreasing from 82.4% (95% CI: 4…
View article: Addressing bias in the definition of SARS-CoV-2 reinfection: implications for underestimation
Addressing bias in the definition of SARS-CoV-2 reinfection: implications for underestimation Open
Introduction Reinfections are increasingly becoming a feature in the epidemiology of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. However, accurately defining reinfection poses methodological challenges. Conventi…
View article: Transforming Primary Healthcare Services with Centralized Health Intelligence: A Case Study from Qatar
Transforming Primary Healthcare Services with Centralized Health Intelligence: A Case Study from Qatar Open
Centralized Health Intelligence (CHI) represents an ecosystem where data, technology, and expertise converge to elevate the standards of healthcare services. In this case study, we explore the pivotal role of CHI in reshaping the healthcar…
View article: Tobacco control in Qatar from 2002 to 2022: 20 years of progress and challenges
Tobacco control in Qatar from 2002 to 2022: 20 years of progress and challenges Open
Tobacco use and exposure has been known as one of the leading causes of premature mortality worldwide. Tobacco control measures have been considered one of the strategies for reducing the burden of NCDs, improving public health, and streng…
View article: Societal health and economic burden of cardiovascular diseases in the population with type 2 diabetes in Qatar. A <scp>10</scp> ‐year forecasting model
Societal health and economic burden of cardiovascular diseases in the population with type 2 diabetes in Qatar. A <span>10</span> ‐year forecasting model Open
Aims To predict the future health and economic burden of cardiovascular disease (CVD) in type 2 diabetes (T2D) in Qatar. Materials and Methods A dynamic multistate model was designed to simulate the progression of fatal and non‐fatal CVD e…
View article: History of primary-series and booster vaccination and protection against Omicron reinfection
History of primary-series and booster vaccination and protection against Omicron reinfection Open
Laboratory evidence suggests a possibility of immune imprinting for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We investigated the differences in the incidence of SARS-CoV-2 reinfection in a cohort of persons w…
View article: Epidemiology of scorpion sting and snakebite cases in Qatar 2018–2022: A primary care-based study
Epidemiology of scorpion sting and snakebite cases in Qatar 2018–2022: A primary care-based study Open
Background: Envenomation caused by snakebites and scorpion stings is a neglected disease responsible for significant morbidity and mortality. In Qatar, little information is available on the epidemiological aspects of snakebites and scorpi…
View article: Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar
Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar Open
Objective To assess the evolution of COVID-19 severity and fatality in a unique setting that consistently applied, throughout the pandemic, rigorous and standardised criteria for defining severe COVID-19 outcomes. Methods and analysis We c…
View article: Short- and longer-term all-cause mortality among SARS-CoV-2- infected individuals and the pull-forward phenomenon in Qatar: a national cohort study
Short- and longer-term all-cause mortality among SARS-CoV-2- infected individuals and the pull-forward phenomenon in Qatar: a national cohort study Open
View article: Seroprevalence of herpes simplex virus type 1 and type 2 among the migrant workers in Qatar
Seroprevalence of herpes simplex virus type 1 and type 2 among the migrant workers in Qatar Open
Background Limited data exists on herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) infections in migrant populations. This study investigated HSV-1 and HSV-2 seroprevalences and associations among craft and manual workers (CMWs) in Q…
View article: Population immunity of natural infection, primary-series vaccination, and booster vaccination in Qatar during the COVID-19 pandemic: an observational study
Population immunity of natural infection, primary-series vaccination, and booster vaccination in Qatar during the COVID-19 pandemic: an observational study Open
View article: Bivalent mRNA-1273.214 vaccine effectiveness against SARS-CoV-2 omicron XBB* infections
Bivalent mRNA-1273.214 vaccine effectiveness against SARS-CoV-2 omicron XBB* infections Open
Effectiveness of the 50-μg mRNA-1273.214 bivalent vaccine against SARS-CoV-2 infection was modest at 25% in a matched, retrospective, cohort study in Qatar comparing infection incidence in the bivalent cohort to that in the national no-rec…
View article: Primary health care capacity assessment in Qatar: the primary health care progression model as an assessment method
Primary health care capacity assessment in Qatar: the primary health care progression model as an assessment method Open
Background: The Primary Health Care Performance Initiative (PHCPI) was developed as a measurement of Primary Health Care (PHC) to evaluate the PHC systems, improve services, and maximize health outcomes. With the limitation of data sources…
View article: Patterns in Repeat Reinfections: Pre and Post Omicron Emergence
Patterns in Repeat Reinfections: Pre and Post Omicron Emergence Open
Our understanding of SARS-CoV-2 reinfection patterns remains limited. We conducted a longitudinal study using Qatar’s national SARS-CoV-2 data from February 28, 2020 to June 11, 2023 to investigate incidence of reinfections both prior to a…
View article: A turning point in COVID-19 severity and fatality during the pandemic: A national cohort study in Qatar
A turning point in COVID-19 severity and fatality during the pandemic: A national cohort study in Qatar Open
Background This study assessed the evolution of COVID-19 severity and fatality by utilizing rigorous and standardized criteria that were consistently applied throughout the pandemic in Qatar. Methods A national cohort study was conducted o…
View article: Population immunity of natural infection, primary-series vaccination, and booster vaccination in Qatar during the COVID-19 pandemic: An observational study
Population immunity of natural infection, primary-series vaccination, and booster vaccination in Qatar during the COVID-19 pandemic: An observational study Open
Summary Background Waning of natural infection protection and vaccine protection highlight the need to evaluate changes in population immunity over time. Population immunity of previous SARS-CoV-2 infection or of COVID-19 vaccination are d…
View article: Effects of previous infection, vaccination, and hybrid immunity against symptomatic Alpha, Beta, and Delta infections
Effects of previous infection, vaccination, and hybrid immunity against symptomatic Alpha, Beta, and Delta infections Open
Background Protection against SARS-CoV-2 symptomatic infection and severe COVID-19 of previous infection, mRNA two-dose vaccination, mRNA three-dose vaccination, and hybrid immunity of previous infection and vaccination were investigated i…