Browsing Research Units by Author "Qotba, Hamda"
Now showing items 1-7 of 7
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Assessment of Indoor Air Quality of Four Primary Health Care Centers in Qatar.
Abdelrahman, Hana; Abu-Rub, Lubna; Al Mana, Hassan; Alhorr, Yousef; Al Thani, Asmaa; Qotba, Hamda; Yassine, Hadi M; Eltai, Nahla O; Hadi, M Yassine; Hadi, M Yassine... more authors ... less authors ( MDPI , 2022 , Article)Airborne bacteria pose a potential risk to human health upon inhalation in the indoor environments of health care facilities. Airborne bacteria may originate from various sources, including patients, workers, and daily ... -
Diagnostic Efficiency of Three Fully Automated Serology Assays and Their Correlation with a Novel Surrogate Virus Neutralization Test in Symptomatic and Asymptomatic SARS-COV-2 Individuals
Younes, Salma; Al-Jighefee, Hadeel; Shurrab, Farah; Al-Sadeq, Duaa W.; Younes, Nadin; Dargham, Soha R.; Al-Dewik, Nader; Qotba, Hamda; Syed, Mohamed; Alnuaimi, Ahmed; Yassine, Hadi M.; Tang, Patrick; Abu-Raddad, Laith J.; Nasrallah, Gheyath K.... more authors ... less authors ( MDPI , 2020 , Article)Abstract: To support the deployment of serology assays for population screening during the COVID-19 pandemic, we compared the performance of three fully automated SARS-CoV-2 IgG assays: Mindray CL-900i® (target: spike [S] ... -
Evaluation of commercially available fully automated and ELISA-based assays for detecting anti-SARS-CoV-2 neutralizing antibodies
Zedan, Hadeel T.; Yassine, Hadi M.; Al-Sadeq, Duaa W.; Liu, Na; Qotba, Hamda; Nicolai, Eleonora; Pieri, Massimo; Bernardini, Sergio; Abu-Raddad, Laith J.; Nasrallah, Gheyath K.... more authors ... less authors ( Nature Research , 2022 , Article)Rapid and accurate measurement of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV2)-specific neutralizing antibodies (nAbs) is paramount for monitoring immunity in infected and vaccinated subjects. The current ... -
Low risk of serological cross-reactivity between the dengue virus and SARS-CoV-2 IgG antibodies using advanced detection assays.
Shurrab, Farah M; Al-Sadeq, Duaa W; Amanullah, Fatima Humaira; Al-Absi, Enas S; Qotba, Hamda; Yassine, Hadi M; Abu-Raddad, Laith J; Nasrallah, Gheyath K... more authors ... less authors ( Karger , 2022 , Report)Several studies have reported serological cross-reactivity of the immune responses between SARS-CoV-2 and DENV. Most of the available studies are based on the point of care (POC) rapid testing kits. However, some rapid ... -
Neutralizing antibodies against SARS-CoV-2 are higher but decline faster in mRNA vaccinees compared to individuals with natural infection.
Abou-Saleh, Haissam; Abo-Halawa, Bushra Y; Younes, Salma; Younes, Nadin; Al-Sadeq, Duaa W; Shurrab, Farah M; Liu, Na; Qotba, Hamda; Al-Dewik, Nader; Ismail, Ahmed; Yassine, Hadi M; Abu-Raddad, Laith J; Nasrallah, Gheyath K... more authors ... less authors ( Oxford University Press , 2022 , Article)Waning protection against emerging SARS-CoV-2 variants by pre-existing antibodies elicited due to current vaccination or natural infection is a global concern. Whether this is due to the waning of immunity to SARS-COV-2 ... -
Performance evaluation of novel fluorescent-based lateral flow immunoassay (LFIA) for rapid detection and quantification of total anti-SARS-CoV-2 S-RBD binding antibodies in infected individuals
Shurrab, Farah M; Younes, Nadin; Al-Sadeq, Duaa W; Liu, Na; Qotba, Hamda; Abu-Raddad, Laith J; Nasrallah, Gheyath K... more authors ... less authors ( Elsevier , 2022 , Article)The vast majority of the commercially available LFIA is used to detect SARS-CoV-2 antibodies qualitatively. Recently, a novel fluorescence-based LIFA test was developed for quantitative measurement of the total binding ... -
SARS-CoV-2 infection triggers more potent antibody-dependent cellular cytotoxicity (ADCC) responses than mRNA-, vector-, and inactivated virus-based COVID-19 vaccines
Zedan, Hadeel T.; Smatti, Maria K.; Al-Sadeq, Duaa W.; Al Khatib, Hebah A.; Nicolai, Eleonora; Pieri, Massimo; Bernardini, Sergio; Hssain, Ali Ait; Taleb, Sara; Qotba, Hamda; Issa, Khodr; Abu Raddad, Laith J.; Althani, Asmaa A.; Nasrallah, Gheyath K.; Yassine, Hadi M.... more authors ... less authors ( Wiley , 2024 , Article)Neutralizing antibodies (NAbs) are elicited after infection and vaccination and have been well studied. However, their antibody-dependent cellular cytotoxicity (ADCC) functionality is still poorly characterized. Here, we ...