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The Lancet. Infectious Diseases|March 13, 2023
Long-term COVID-19 booster effectiveness by infection history and clinical vulnerability and immune imprinting: a retrospective population-based cohort studyHiam Chemaitelly, Houssein H Ayoub, Patrick Tang, et al.The Lancet. Microbe|November 14, 2022
Protection from previous natural infection compared with mRNA vaccination against SARS-CoV-2 infection and severe COVID-19 in Qatar: a retrospective cohort studyHiam Chemaitelly, Houssein H Ayoub, Sawsan AlMukdad, et al.Eclinicalmedicine|August 3, 2023
Population immunity of natural infection, primary-series vaccination, and booster vaccination in Qatar during the COVID-19 pandemic: an observational studySuelen H Qassim, Hiam Chemaitelly, Houssein H Ayoub, et al.Vaccine|April 15, 2024
Effectiveness of two and three doses of COVID-19 mRNA vaccines against infection, symptoms, and severity in the pre-omicron era: A time-dependent gradientLayan Sukik, Hiam Chemaitelly, Houssein H Ayoub, et al.Frontiers in Immunology|September 30, 2022
Effects of SARS-CoV-2 Alpha, Beta, and Delta variants, age, vaccination, and prior infection on infectiousness of SARS-CoV-2 infectionsSuelen H Qassim, Mohammad R Hasan, Patrick Tang, et al.Journal of Travel Medicine|September 30, 2022
Duration of immune protection of SARS-CoV-2 natural infection against reinfectionHiam Chemaitelly, Nico Nagelkerke, Houssein H Ayoub, et al.International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases|September 17, 2023
Short- and longer-term all-cause mortality among SARS-CoV-2- infected individuals and the pull-forward phenomenon in Qatar: a national cohort studyHiam Chemaitelly, Jeremy Samuel Faust, Harlan M Krumholz, et al.Pageof 7