Get started
Author

Riyazuddin Mohammad Shaik

Observed names: Riyazuddin M Shaik, Riyazuddin M. Shaik, Riyazuddin Mohammad Shaik, Shaik, Riyazuddin Mohammad
Observed institutions: Cornell University, Ministry of Public Health, World Health Organization, Primary Health Care, Weill Cornell Medical College in Qatar, Weill Cornell Medicine, Hamad Medical Corporation, Qatar University, Assiut University, Qatar Foundation
ORCID: 0000-0002-9844-5854
Observed ORCID: 0000-0002-9844-5854
OpenAlex ID: A5039166364
Effects of Previous Infection and Vaccination on Symptomatic Omicron Infections
2022 · Heba N. Altarawneh, Hiam Chemaitelly, et al. · New England Journal of Medicine · 519
PDF
BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar
2021 · Patrick Tang, Mohammad R. Hasan, et al. · Nature Medicine · 437
PDF
mRNA-1273 COVID-19 vaccine effectiveness against the B.1.1.7 and B.1.351 variants and severe COVID-19 disease in Qatar
2021 · Hiam Chemaitelly, Hadi M. Yassine, et al. · Nature Medicine · 369
PDF
Effect of mRNA Vaccine Boosters against SARS-CoV-2 Omicron Infection in Qatar
2022 · Laith J. Abu-Raddad, Hiam Chemaitelly, et al. · New England Journal of Medicine · 360
PDF
Duration of mRNA vaccine protection against SARS-CoV-2 Omicron BA.1 and BA.2 subvariants in Qatar
2022 · Hiam Chemaitelly, Houssein H. Ayoub, et al. · Nature Communications · 218
PDF
SARS-CoV-2 antibody-positivity protects against reinfection for at least seven months with 95% efficacy
2021 · Laith J. Abu-Raddad, Hiam Chemaitelly, et al. · EClinicalMedicine · 197
PDF
Assessment of the Risk of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Reinfection in an Intense Reexposure Setting
2020 · Laith J Abu-Raddad, Hiam Chemaitelly, et al. · Clinical Infectious Diseases · 176
PDF
Association of Prior SARS-CoV-2 Infection With Risk of Breakthrough Infection Following mRNA Vaccination in Qatar
2021 · Laith J. Abu-Raddad, Hiam Chemaitelly, et al. · JAMA · 165
PDF
Protective Effect of Previous SARS-CoV-2 Infection against Omicron BA.4 and BA.5 Subvariants
2022 · Heba N. Altarawneh, Hiam Chemaitelly, et al. · New England Journal of Medicine · 144
PDF
Coronavirus Disease 2019 Disease Severity in Children Infected With the Omicron Variant
2022 · Adeel A Butt, Soha R Dargham, et al. · Clinical Infectious Diseases · 131
PDF
Long-term COVID-19 booster effectiveness by infection history and clinical vulnerability and immune imprinting: a retrospective population-based cohort study
2023 · Hiam Chemaitelly, Houssein H Ayoub, et al. · The Lancet Infectious Diseases · 110
PDF
Duration of immune protection of SARS-CoV-2 natural infection against reinfection
2022 · Hiam Chemaitelly, Nico Nagelkerke, et al. · Journal of Travel Medicine · 107
PDF
Herd Immunity against Severe Acute Respiratory Syndrome Coronavirus 2 Infection in 10 Communities, Qatar
2021 · Andrew Jeremijenko, Hiam Chemaitelly, et al. · Emerging infectious diseases · 94
PDF
SARS-CoV-2 Infection Is at Herd Immunity in the Majority Segment of the Population of Qatar
2021 · Mohamed H Al-Thani, Elmoubasher Farag, et al. · Open Forum Infectious Diseases · 83
PDF
SARS-CoV-2 seroprevalence in the urban population of Qatar: An analysis of antibody testing on a sample of 112,941 individuals
2021 · Peter V. Coyle, Hiam Chemaitelly, et al. · iScience · 80
PDF
Protection from previous natural infection compared with mRNA vaccination against SARS-CoV-2 infection and severe COVID-19 in Qatar: a retrospective cohort study
2022 · Hiam Chemaitelly, Houssein H Ayoub, et al. · The Lancet Microbe · 79
Relative infectiousness of SARS-CoV-2 vaccine breakthrough infections, reinfections, and primary infections
2022 · Laith J. Abu-Raddad, Hiam Chemaitelly, et al. · Nature Communications · 79
PDF
Protection of Omicron sub-lineage infection against reinfection with another Omicron sub-lineage
2022 · Hiam Chemaitelly, Houssein H. Ayoub, et al. · Nature Communications · 77
PDF
Mathematical modeling of the SARS-CoV-2 epidemic in Qatar and its impact on the national response to COVID-19
2021 · Houssein H Ayoub, Hiam Chemaitelly, et al. · Journal of Global Health · 77
PDF
Immune Imprinting and Protection against Repeat Reinfection with SARS-CoV-2
2022 · Hiam Chemaitelly, Houssein H. Ayoub, et al. · New England Journal of Medicine · 74
PDF
Effectiveness of mRNA-1273 and BNT162b2 Vaccines in Qatar
2022 · Laith J. Abu-Raddad, Hiam Chemaitelly, et al. · New England Journal of Medicine · 74
PDF
Pfizer-BioNTech mRNA BNT162b2 Covid-19 vaccine protection against variants of concern after one versus two doses
2021 · Laith J Abu-Raddad, Hiam Chemaitelly, et al. · Journal of Travel Medicine · 72
PDF
Covid-19 Vaccine Protection among Children and Adolescents in Qatar
2022 · Hiam Chemaitelly, Sawsan AlMukdad, et al. · New England Journal of Medicine · 71
PDF
Severity, Criticality, and Fatality of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Beta Variant
2021 · Laith J Abu-Raddad, Hiam Chemaitelly, et al. · Clinical Infectious Diseases · 62
PDF
Differential protection against SARS-CoV-2 reinfection pre- and post-Omicron
2025 · Hiam Chemaitelly, Houssein H. Ayoub, et al. · Nature · 59
PDF
Works count: 72
Citation count: 4,743
H-index: 34
I10-index: 50
Year
Topic
Type