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Calvin J. Chiew

Can we contain the COVID-19 outbreak with the same measures as for SARS?
2020 · Annelies Wilder-Smith, Calvin J Chiew, et al. · The Lancet Infectious Diseases · 987
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Presymptomatic Transmission of SARS-CoV-2 — Singapore, January 23–March 16, 2020
2020 · Wycliffe E. Wei, Zongbin Li, et al. · MMWR Morbidity and Mortality Weekly Report · 915
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Investigation of three clusters of COVID-19 in Singapore: implications for surveillance and response measures
2020 · Rachael Pung, Calvin J Chiew, et al. · The Lancet · 672
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Clinical and Virological Features of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Variants of Concern: A Retrospective Cohort Study Comparing B.1.1.7 (Alpha), B.1.351 (Beta), and B.1.617.2 (Delta)
2021 · Sean Wei Xiang Ong, Calvin J Chiew, et al. · Clinical Infectious Diseases · 432
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Interrupting transmission of COVID-19: lessons from containment efforts in Singapore
2020 · Vernon J Lee, Calvin J Chiew, et al. · Journal of Travel Medicine · 411
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Virological and serological kinetics of SARS-CoV-2 Delta variant vaccine breakthrough infections: a multicentre cohort study
2021 · Po Ying Chia, Sean Wei Xiang Ong, et al. · Clinical Microbiology and Infection · 330
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Decreased Influenza Incidence under COVID-19 Control Measures, Singapore
2020 · Roy Jiunn Jye Soo, Calvin J. Chiew, et al. · Emerging infectious diseases · 325
Evaluation of the Effectiveness of Surveillance and Containment Measures for the First 100 Patients with COVID-19 in Singapore — January 2–February 29, 2020
2020 · Yixiang Ng, Zongbin Li, et al. · MMWR Morbidity and Mortality Weekly Report · 315
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Utilizing Machine Learning Methods for Preoperative Prediction of Postsurgical Mortality and Intensive Care Unit Admission
2019 · Calvin J. Chiew, Nan Liu, et al. · Annals of Surgery · 155
SARS-CoV-2 Infection among Travelers Returning from Wuhan, China
2020 · Oon-Tek Ng, Kalisvar Marimuthu, et al. · New England Journal of Medicine · 131
Heart rate variability based machine learning models for risk prediction of suspected sepsis patients in the emergency department
2019 · Calvin J. Chiew, Nan Liu, et al. · Medicine · 92
Comparative Effectiveness of mRNA and Inactivated Whole Virus Vaccines against COVID-19 Infection and Severe Disease in Singapore
2021 · M Premikha, Calvin J Chiew, et al. · Clinical Infectious Diseases · 79
Protective immunity of SARS-CoV-2 infection and vaccines against medically attended symptomatic omicron BA.4, BA.5, and XBB reinfections in Singapore: a national cohort study
2023 · Celine Y Tan, Calvin J Chiew, et al. · The Lancet Infectious Diseases · 73
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Analysis of COVID-19 Incidence and Severity Among Adults Vaccinated With 2-Dose mRNA COVID-19 or Inactivated SARS-CoV-2 Vaccines With and Without Boosters in Singapore
2022 · Oon Tek Ng, Kalisvar Marimuthu, et al. · JAMA Network Open · 69
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Long-term Cardiovascular, Cerebrovascular, and Other Thrombotic Complications in COVID-19 Survivors: A Retrospective Cohort Study
2023 · Jue Tao Lim, Wee Liang En, et al. · Clinical Infectious Diseases · 66
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Impact of Delta Variant and Vaccination on SARS-CoV-2 Secondary Attack Rate Among Household Close Contacts
2021 · Oon Tek Ng, Vanessa Koh, et al. · The Lancet Regional Health - Western Pacific · 64
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Risk factors and reasons for cancellation within 24 h of scheduled elective surgery in an academic medical centre: A cohort study
2019 · Aidan L. Tan, Calvin J. Chiew, et al. · International Journal of Surgery · 58
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Effectiveness of bivalent mRNA vaccines against medically attended symptomatic SARS-CoV-2 infection and COVID-19-related hospital admission among SARS-CoV-2-naive and previously infected individuals: a retrospective cohort study
2023 · Celine Y Tan, Calvin J Chiew, et al. · The Lancet Infectious Diseases · 49
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Conventional Versus Hypofractionated Radiation Therapy for Localized Prostate Cancer: A Meta-analysis of Randomized Noninferiority Trials
2017 · Trevor Joseph Royce, Dong Hoon Lee, et al. · European Urology Focus · 47
Real-world effectiveness of nirmatrelvir/ritonavir against COVID-19 hospitalizations and severe COVID-19 in community-dwelling elderly Singaporeans during Omicron BA.2, BA.4/5, and XBB transmission
2023 · Liang En Wee, An Ting Tay, et al. · Clinical Microbiology and Infection · 44
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Long-term Real-world Protection Afforded by Third mRNA Doses Against Symptomatic Severe Acute Respiratory Syndrome Coronavirus 2 Infections, Coronavirus Disease 19-related Emergency Attendances and Hospitalizations Amongst Older Singaporeans During an Omicron XBB Wave
2023 · Liang En Wee, Deanette Pang, et al. · Clinical Infectious Diseases · 38
Reducing onward spread of COVID-19 from imported cases: quarantine and ‘stay at home’ measures for travellers and returning residents to Singapore
2020 · Calvin J Chiew, Zongbin Li, et al. · Journal of Travel Medicine · 35
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Vaccine effectiveness against Delta, Omicron BA.1, and BA.2 in a highly vaccinated Asian setting: a test-negative design study
2022 · Celine Y. Tan, Calvin J. Chiew, et al. · Clinical Microbiology and Infection · 30
Assessing the impact of non-pharmaceutical interventions on the transmissibility and severity of COVID-19 during the first five months in the Western Pacific Region
2021 · Eng Kiong Yeoh, Ka Chun Chong, et al. · One Health · 30
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Cardiac Events in Adults Hospitalized for Respiratory Syncytial Virus vs COVID-19 or Influenza
2025 · Liang En Wee, Jue Tao Lim, et al. · JAMA Network Open · 29
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Works count: 94
Citation count: 6,018
H-index: 28
I10-index: 48
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