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Evolution and dynamics of the pandemic H1N1 influenza hemagglutinin protein from 2009 to 2017.
(
Springer Vienna
, 2018 , Article)
The emergence of swine-origin pandemic H1N1 (pH1N1) in 2009 invigorated extensive surveillance programs worldwide which have resulted in the deposition of large numbers of H1N1 sequences to Genbank. In the present study, ...
Epidemiology of respiratory infections among adults in Qatar (2012-2017).
(
Public Library of Science
, 2019 , Article)
Limited data is available about the etiology of influenza like illnesses (ILIs) in Qatar. This study aimed at providing preliminary estimates of influenza and other respiratory infections circulating among adults in Qatar. ...
Epidemiological and genetic characterization of pH1N1 and H3N2 influenza viruses circulated in MENA region during 2009-2017.
(
BMC
, 2019 , Article)
Influenza surveillance is necessary for detection of emerging variants of epidemiologic and clinical significance. This study describes the epidemiology of influenza types A and B, and molecular characteristics of surface ...
Within-Host Diversity of SARS-CoV-2 in COVID-19 Patients With Variable Disease Severities.
(
Frontiers Media
, 2020 , Article)
The ongoing pandemic of SARS-COV-2 has already infected more than eight million people worldwide. The majority of COVID-19 patients either are asymptomatic or have mild symptoms. Yet, about 15% of the cases experience ...
Molecular and biological characterization of influenza A viruses isolated from human fecal samples
(
Elsevier
, 2021 , Article)
Human influenza viruses are occasionally detected in the stools of influenza patients. Objectives: Here, we investigated the molecular and biological characteristics of intestinal influenza viruses and their potential role ...
Reinfections in COVID-19 Patients: Impact of Virus Genetic Variability and Host Immunity
(
MDPI
, 2021 , Article)
The COVID-19 pandemic is still posing a devastating threat to social life and economics. Despite the modest decrease in the number of cases during September-November 2020, the number of active cases is on the rise again. ...
Profiling of intestinal microbiota in patients infected with respiratory influenza a and b viruses
(
MDPI
, 2021 , Article)
Little is known about the association between respiratory viral infections and their impact on intestinal microbiota. Here, we compared the effect of influenza types, A and B, and influenza shedding in patients’ stools on ...
Epidemiology Profile of Viral Meningitis Infections Among Patients in Qatar (2015-2018)
(
Frontiers Media
, 2021 , Article)
Little is known about the etiology of meningitis in the MENA region, including Qatar. Viral agents are considered the major cause for meningitis worldwide. Here, we present primary data about the etiology and clinical and ...
One Year of SARS-CoV-2: Genomic Characterization of COVID-19 Outbreak in Qatar
(
Frontiers
, 2021 , Article)
Qatar, a country with a strong health system and a diverse population consisting mainly of expatriate residents, has experienced two large waves of COVID-19 outbreak. In this study, we report on 2634 SARS-CoV-2 whole-genome ...
BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar.
(
Nature Researc
, 2021 , Article)
With the global expansion of the highly transmissible SARS-CoV-2 Delta (B.1.617.2) variant, we conducted a matched test-negative case-control study to assess the real-world effectiveness of COVID-19 messenger RNA vaccines ...