Browsing by Author "Chemaitelly, Hiam"
Now showing items 1-20 of 56
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All-cause and COVID-19 mortality in Qatar during the COVID-19 pandemic
Alnuaimi, Asma A.; Chemaitelly, Hiam; Semaan, Sandy; Almukdad, Sawsan; Al-Kanaani, Zaina; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Al-Romaihi, Hamad Eid; Butt, Adeel A.; Al-Thani, Mohamed H.; Bertollini, Roberto; Abdulmalik, Mariam; Al-Khal, Abdullatif; Abu-Raddad, Laith J.... more authors ... less authors ( BMJ Publishing Group , 2023 , Article)Objective To investigate all-cause mortality, COVID-19 mortality and all-cause non-COVID-19 mortality in Qatar during the COVID-19 pandemic. Methods A national, retrospective cohort analysis and national, matched, retrospective ... -
Analytic comparison between three high-throughput commercial SARS-CoV-2 antibody assays reveals minor discrepancies in a high-incidence population
Nasrallah, Gheyath K; Dargham, Soha R; Shurrab, Farah; Al-Sadeq, Duaa W; Al-Jighefee, Hadeel; Chemaitelly, Hiam; Al Kanaani, Zaina; Al Khal, Abdullatif; Al Kuwari, Einas; Coyle, Peter; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Rahim, Hanan F Abdul; Yassine, Hadi M; Al Kuwari, Mohamed G; Qotba, Hamda; Al Romaihi, Hamad Eid; Tang, Patrick; Bertollini, Roberto; Al-Thani, Mohamed H; Althani, Asmaa A; Abu-Raddad, Laith J... more authors ... less authors ( Nature Research , 2021 , Article)Performance of three automated commercial serological IgG-based assays was investigated for assessing SARS-CoV-2 "ever" (past or current) infection in a population-based sample in a high exposure setting. PCR and serological ... -
Analyzing inherent biases in SARS-CoV-2 PCR and serological epidemiologic metrics
Makhoul, Monia; Abou-Hijleh, Farah; Seedat, Shaheen; Mumtaz, Ghina R.; Chemaitelly, Hiam; Ayoub, Houssein; Abu-Raddad, Laith J.... 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 ... -
Assessing the performance of a serological point-of-care test in measuring detectable antibodies against SARS-CoV-2
El Kahlout, Reham Awni; Coyle, Peter V.; Dargham, Soha R.; Chemaitelly, Hiam; Kacem, Mohamed Ali Ben Hadj; Al-Mawlawi, Naema Hassan Abdulla; Gilliani, Imtiaz; Younes, Nourah; AlKanaani, Zaina; AlKhal, Abdullatif; ALKuwari, Einas; Jeremijenko, Andrew... more authors ... less authors ( Public Library of Science , 2022 , Article)This study investigated the performance of a rapid point-of-care antibody test, the BioMedomics COVID-19 IgM/IgG Rapid Test, in comparison with a high-quality, validated, laboratory-based platform, the Roche Elecsys ... -
Assessment of the Risk of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Reinfection in an Intense Reexposure Setting
Abu-Raddad, Laith J.; Chemaitelly, Hiam; Malek, Joel A.; Ahmed, Ayeda A.; Mohamoud, Yasmin A.; Younuskunju, Shameem; Ayoub, Houssein H.; Al Kanaani, Zaina; Al Khal, Abdullatif; Al Kuwari, Einas; Butt, Adeel A.; Coyle, Peter; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Abdul Rahim, Hanan F.; Yassine, Hadi M.; Al Kuwari, Mohamed G.; Al Romaihi, Hamad Eid; Al-Thani, Mohamed H.; Bertollini, Roberto... more authors ... less authors ( NLM (Medline) , 2021 , Article)BACKGROUND: Risk of reinfection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is unknown. We assessed the risk and incidence rate of documented SARS-CoV-2 reinfection in a cohort of laboratory-confirmed ... -
Association of Prior SARS-CoV-2 Infection With Risk of Breakthrough Infection Following mRNA Vaccination in Qatar.
Abu-Raddad, Laith J; Chemaitelly, Hiam; Ayoub, Houssein H; Yassine, Hadi M; Benslimane, Fatiha M; Al Khatib, Hebah A; Tang, Patrick; Hasan, Mohammad R; Coyle, Peter; Al Kanaani, Zaina; Al Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Abdul Rahim, Hanan F; Nasrallah, Gheyath K; Al Kuwari, Mohamed Ghaith; Butt, Adeel A; Al Romaihi, Hamad Eid; Al-Thani, Mohamed H; Al Khal, Abdullatif; Bertollini, Roberto... more authors ... less authors ( American Medical Association , 2021 , Article)The effect of prior SARS-CoV-2 infection on vaccine protection remains poorly understood. To assess protection from SARS-CoV-2 breakthrough infection after mRNA vaccination among persons with vs without prior SARS-CoV-2 ... -
Associations of Vaccination and of Prior Infection with Positive PCR Test Results for SARS-CoV-2 in Airline Passengers Arriving in Qatar
Bertollini, Roberto; Chemaitelly, Hiam; Yassine, Hadi M.; Al-Thani, Mohamed H.; Al-Khal, Abdullatif; Abu-Raddad, Laith J.... more authors ... less authors ( American Medical Association , 2021 , Other)The SARS-CoV-2 pandemic has severely affected international travel. With efficacious COVID-19 vaccines available, Qatar implemented a pilot program between February 18 and April 26, 2021, to ease travel restrictions by ... -
Bivalent mRNA-1273.214 vaccine effectiveness against SARS-CoV-2 omicron XBB* infections
Chemaitelly, Hiam; Ayoub, Houssein H.; AlMukdad, Sawsan; Faust, Jeremy S.; Tang, Patrick; Coyle, Peter; Yassine, Hadi M.; Al Thani, Asmaa A.; Al-Khatib, Hebah A.; Hasan, Mohammad R.; Al-Kanaani, Zaina; Al-Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar H.; Latif, Ali N.; Shaik, Riyazuddin M.; Abdul-Rahim, Hanan F.; Nasrallah, Gheyath K.; Al-Kuwari, Mohamed G.; Butt, Adeel A.; Al-Romaihi, Hamad E.; Al-Thani, Mohamed H.; Al-Khal, Abdullatif; Bertollini, Roberto; Abu-Raddad, Laith J.... more authors ... less authors (2023 , Article)In October of 2022, Qatar introduced COVID-19 bivalent vaccination for persons ≥ 12 years using the 50-μg mRNA-1273.214 vaccine combining SARS-CoV-2 ancestral and omicron BA.1 strains.1 We estimated this vaccine’s effectiveness ... -
BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar.
Tang, Patrick; Hasan, Mohammad R; Chemaitelly, Hiam; Yassine, Hadi M; Benslimane, Fatiha M; Al Khatib, Hebah A; AlMukdad, Sawsan; Coyle, Peter; Ayoub, Houssein H; Al Kanaani, Zaina; Al Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Abdul Rahim, Hanan F; Nasrallah, Gheyath K; Al Kuwari, Mohamed Ghaith; Al Romaihi, Hamad Eid; Butt, Adeel A; Al-Thani, Mohamed H; Al Khal, Abdullatif; Bertollini, Roberto; Abu-Raddad, Laith J... more authors ... less authors ( 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 ... -
BNT162b2 antigen dose and SARS-CoV-2 omicron infection in adolescents
Chemaitelly, Hiam; Ayoub, Houssein H.; Coyle, Peter; Tang, Patrick; Yassine, Hadi M.; Al Thani, Asmaa A.; Al-Khatib, Hebah A.; Hasan, Mohammad R.; Al-Kanaani, Zaina; Al-Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Abdul-Rahim, Hanan F.; Nasrallah, Gheyath K.; Al-Kuwari, Mohamed Ghaith; Al-Romaihi, Hamad Eid; Butt, Adeel A.; Al-Thani, Mohamed H.; Al-Khal, Abdullatif; Bertollini, Roberto; Abu-Raddad, Laith J.... more authors ... less authors ( Elsevier , 2023 , Other)COVID-19 vaccine antigen dose might affect protection against SARS-CoV-2 infection,1, 2 but direct evidence to quantify this effect is absent. We conducted a matched, retrospective, cohort study using a regression ... -
Characterizing the effective reproduction number during the COVID-19 pandemic: Insights from Qatar’s experience
Bsat, Raghid; Chemaitelly, Hiam; Coyle, Peter; Tang, Patrick; Hasan, Mohammad R; Al Kanaani, Zaina; Al Kuwari, Einas; Butt, Adeel A; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Nasrallah, Gheyath K; Benslimane, Fatiha M; Al Khatib, Hebah A; Yassine, Hadi M; Al Kuwari, Mohamed G; Al Romaihi, Hamad Eid; Al-Thani, Mohamed H; Al Kha, Abdullatif; Bertollini, Roberto; Abu-Raddad, Laith J; Ayoub, Houssein H... more authors ... less authors ( International Society of Global Health , 2022 , Article)Background: The effective reproduction number, Rt, is a tool to track and understand epidemic dynamics. This investigation of Rt estimations was conducted to guide the national COVID-19 response in Qatar, from the onset ... -
Characterizing the Qatar advanced-phase SARS-CoV-2 epidemic
Abu-Raddad, Laith J.; Chemaitelly, Hiam; Ayoub, Houssein H.; Al Kanaani, Zaina; Al Khal, Abdullatif; Al Kuwari, Einas; Butt, Adeel A.; Coyle, Peter; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Owen, Robert C.; Rahim, Hanan F.Abdul; Al Abdulla, Samya A.; Al Kuwari, Mohamed G.; Kandy, Mujeeb C.; Saeb, Hatoun; Ahmed, Shazia Nadeem N.; Al Romaihi, Hamad Eid; Bansal, Devendra; Dalton, Louise; Al-Thani, Mohamed H.; Bertollini, Roberto... more authors ... less authors ( springer nature , 2021 , Article)The overarching objective of this study was to provide the descriptive epidemiology of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic in Qatar by addressing specific research questions through a ... -
Characterizing trends and associations for hepatitis C virus antibody prevalence in the Middle East and North Africa: meta-regression analyses
Mahmud, Sarwat; Chemaitelly, Hiam; Alaama, Ahmed S.; Hermez, Joumana G.; Abu-Raddad, Laith J. ( Springer Nature , 2022 , Article)This study characterized population-level trends and associations with hepatitis C virus (HCV) antibody (Ab) prevalence in the Middle East and North Africa (MENA). Data source was the standardized and systematically gathered ... -
Coronavirus Disease 2019 Disease Severity in Children Infected With the Omicron Variant
Butt, A.A.; Butt, Adeel A.; Dargham, Soha R.; Loka, Srusvin; Shaik, Riyazuddin M.; Chemaitelly, Hiam; Tang, Patrick; Hasan, Mohammad R.; Coyle, Peter V.; Yassine, Hadi M.; Al-Khatib, Hebah A.; Smatti, Maria K.; Kaleeckal, Anvar H.; Latif, Ali Nizar; Zaqout, Ahmed; Almaslamani, Muna A.; Al Khal, Abdullatif; Bertollini, Roberto; Abou-Samra, Abdul Badi; Abu-Raddad, Laith J.... more authors ... less authors ( NLM (Medline) , 2022 , Article)SHORT SUMMARY: Severe acute respiratory syndrome coronavirus 2 infection from the Omicron variant in children/adolescents is less severe than infection from the Delta variant. Those 6 to <18 years also have less severe ... -
COVID-19 risk score as a public health tool to guide targeted testing: A demonstration study in Qatar
J. Abu-Raddad, Laith; Dargham, Soha; Chemaitelly, Hiam; Coyle, Peter; Al Kanaani, Zaina; Al Kuwari, Einas; A. Butt, Adeel; Jeremijenko, Andrew; Hassan Kaleeckal, Anvar; Nizar Latif, Ali; Mohammad Shaik, Riyazuddin; F. Abdul Rahim, Hanan; K. Nasrallah, Gheyath; M. Yassine, Hadi; G. Al Kuwari, Mohamed; Eid Al Romaihi, Hamad; H. Al-Thani, Mohamed; Al Khal, Abdullatif; Bertollini, Roberto... more authors ... less authors ( Public Library of Science , 2022 , Article)We developed a Coronavirus Disease 2019 (COVID-19) risk score to guide targeted RTPCR testing in Qatar. The Qatar national COVID-19 testing database, encompassing a total of 2,688,232 RT-PCR tests conducted between February ... -
Covid-19 Vaccine Protection among Children and Adolescents in Qatar.
Chemaitelly, Hiam; AlMukdad, Sawsan; Ayoub, Houssein H; Altarawneh, Heba N; Coyle, Peter; Tang, Patrick; Yassine, Hadi M; Al-Khatib, Hebah A; Smatti, Maria K; Hasan, Mohammad R; Al-Kanaani, Zaina; Al-Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar H; Latif, Ali N; Shaik, Riyazuddin M; Abdul-Rahim, Hanan F; Nasrallah, Gheyath K; Al-Kuwari, Mohamed G; Al-Romaihi, Hamad E; Butt, Adeel A; Al-Thani, Mohamed H; Al-Khal, Abdullatif; Bertollini, Roberto; Abu-Raddad, Laith J... 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 ... -
Development, translation, and validation of a bilingual questionnaire on unused medications in homes
Makki, Mutaseim; Hassali, Mohamed Azmi Ahmad; Awaisu, Ahmed; Chemaitelly, Hiam; Al Hail, Moza; Mohammed ElMotasim, Walid; Yousif Mohamed Ali Taha, Mohamed; Mohd J Al-Khuzaei, Noriya; Salama, Gamila; Pallivalapila, Abdulrouf; El Kassem, Wessam; Thomas, Binny... more authors ... less authors ( Elsevier , 2021 , Article)Background: Unused medications in homes pose significant health, economic, and environmental risks. Patients are the medications end users and their knowledge, attitude, and practices (KAP) play an important role towards ... -
Duration of immune protection of SARS-CoV-2 natural infection against reinfection.
Chemaitelly, Hiam; Nagelkerke, Nico; Ayoub, Houssein H; Coyle, Peter; Tang, Patrick; Yassine, Hadi M; Al-Khatib, Hebah A; Smatti, Maria K; Hasan, Mohammad R; Al-Kanaani, Zaina; Al-Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Abdul-Rahim, Hanan F; Nasrallah, Gheyath K; Al-Kuwari, Mohamed Ghaith; Butt, Adeel A; Al-Romaihi, Hamad Eid; Al-Thani, Mohamed H; Al-Khal, Abdullatif; Bertollini, Roberto; Abu-Raddad, Laith J... 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 ... -
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; Yassine, Hadi M; Al-Khatib, Hebah A; Smatti, Maria K; Hasan, Mohammad R; Al-Kanaani, Zaina; Al-Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar Hassan; Latif, Ali Nizar; Shaik, Riyazuddin Mohammad; Abdul-Rahim, Hanan F; Nasrallah, Gheyath K; Al-Kuwari, Mohamed Ghaith; Butt, Adeel A; Al-Romaihi, Hamad Eid; Al-Thani, Mohamed H; Al-Khal, Abdullatif; Bertollini, Roberto; Abu-Raddad, Laith J... 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; Al-Khatib, Hebah A; Smatti, Maria K; Tang, Patrick; Hasan, Mohammad R; Coyle, Peter; Al-Kanaani, Zaina; Al-Kuwari, Einas; Jeremijenko, Andrew; Kaleeckal, Anvar H; Latif, Ali N; Shaik, Riyazuddin M; Abdul-Rahim, Hanan F; Nasrallah, Gheyath K; Al-Kuwari, Mohamed Ghaith; Butt, Adeel A; Al-Romaihi, Hamad Eid; Al-Thani, Mohamed H; Al-Khal, Abdullatif; Bertollini, Roberto... 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 ...