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Duration of immune protection of SARS-CoV-2 natural infection against reinfection.

Chemaitelly, Hiam; Nagelkerke, Nico; Ayoub, Houssein H; Coyle, Peter; Tang, Patrick; ... more authors ... less authors ( Oxford University Press , 2022 , Article)

The future of the SARS-CoV-2 pandemic hinges on virus evolution and duration of immune protection of natural infection against reinfection. We investigated duration of protection afforded by natural infection, the effect ...

Covid-19 Vaccine Protection among Children and Adolescents in Qatar.

Chemaitelly, Hiam; AlMukdad, Sawsan; Ayoub, Houssein H; Altarawneh, Heba N; Coyle, Peter; ... more authors ... less authors ( Massachusetts Medical Society , 2022 , Article)

The BNT162b2 vaccine against coronavirus disease 2019 (Covid-19) has been authorized for use in children 5 to 11 years of age and adolescents 12 to 17 years of age but in different antigen doses. We assessed the real-world ...

Duration of mRNA vaccine protection against SARS-CoV-2 Omicron BA.1 and BA.2 subvariants in Qatar.

Chemaitelly, Hiam; Ayoub, Houssein H; AlMukdad, Sawsan; Coyle, Peter; Tang, Patrick; ... more authors ... less authors ( Nature Research , 2022 , Article)

SARS-CoV-2 Omicron BA.1 and BA.2 subvariants are genetically divergent. We conducted a matched, test-negative, case-control study to estimate duration of protection of the second and third/booster doses of mRNA COVID-19 ...

Effect of mRNA Vaccine Boosters against SARS-CoV-2 Omicron Infection in Qatar.

Abu-Raddad, Laith J; Chemaitelly, Hiam; Ayoub, Houssein H; AlMukdad, Sawsan; Yassine, Hadi M; ... more authors ... less authors ( Massachusetts Medical Society , 2022 , Article)

Waning of vaccine protection against coronavirus disease 2019 (Covid-19) and the emergence of the omicron (or B.1.1.529) variant of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have led to expedited ...

A systematic review of interventions to promote physical activity in six Gulf countries

Nash, Elizabeth A.; Critchley, Julia A.; Pearson, Fiona; Awad, Susanne F.; Abu-Raddad, Laith J.; ... more authors ... less authors ( Public Library of Science , 2021 , Article)

Physical activity (PA) levels are low in Gulf Cooperation Council countries (GCC; Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, United Arab Emirates). We carried out a systematic review (PROSPERO registration number 131817) ...

Characterizing epidemiology of prediabetes, diabetes, and hypertension in Qataris: A cross-sectional study

Al-Thani, Mohammed H.; Al-Mutawa, Kholood A.; Alyafei, Salah A.; Ijaz, Muhammad A.; Khalifa, Shamseldin A.H.; ... more authors ... less authors ( Public Library of Science , 2021 , Article)

Objectives To characterize the epidemiologic profiles of prediabetes mellitus (preDM), diabetes mellitus (DM), and hypertension (HTN) in Qataris using the nationally representative 2012 Qatar STEPwise Survey. Methods A ...

Effect of subsidies on healthful consumption: a protocol for a systematic review update

Pearson, Fiona; Huangfu, Peijue; Abu-Hijleh, Farah M.; Awad, Susanne F.; Abu-Raddad, Laith J.; ... more authors ... less authors ( BMJ Publishing Group , 2020 , Article)

INTRODUCTION: The prevalence of diet-related non-communicable diseases (NCDs) are rapidly increasing in most parts of the world. In order to ameliorate the related public health burden, evidence-informed policies to improve ...

Epidemiology of herpes simplex virus type 2 in sub-Saharan Africa: Systematic review, meta-analyses, and meta-regressions

Harfouche, Manale; Abu-Hijleh, Farah M.; James, Charlotte; Looker, Katharine J.; Abu-Raddad, Laith J. ( EClinicalMedicine , 2021 , Article)

Background: Herpes simplex virus type 2 (HSV-2) infection is a prevalent, sexually transmitted infection with a sizable disease burden that is highest in sub-Saharan Africa. This study aimed to characterize HSV-2 epidemiology ...

Type 2 diabetes epidemic and key risk factors in Qatar: A mathematical modeling analysis

Awad, Susanne F.; A Toumi, Amine; A Al-Mutawaa, Kholood; A Alyafei, Salah; A Ijaz, Muhammad; ... more authors ... less authors ( BMJ Journal , 2022 , Article)

Introduction We aimed to characterize and forecast type 2 diabetes mellitus (T2DM) disease burden between 2021 and 2050 in Qatar where 89% of the population comprises expatriates from over 150 countries. Research design ...

Analyzing inherent biases in SARS-CoV-2 PCR and serological epidemiologic metrics

Makhoul, Monia; Abou-Hijleh, Farah; Seedat, Shaheen; Mumtaz, Ghina R.; Chemaitelly, Hiam; ... more authors ... less authors ( springer nature , 2022 , Article)

Background: Prospective observational data show that infected persons with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remain polymerase chain reaction (PCR) positive for a prolonged duration, and that ...