Matthias Paul HS Toh

Presymptomatic Transmission of SARS-CoV-2 — Singapore, January 23–March 16, 2020

Wycliffe Enli Wei, Zongbin Li, Calvin J. Chiew et al. · MMWR Morbidity and Mortality Weekly Report · 2020 · 993 citations · Full text

Veterinary Medicine, Infectious Diseases, Infectious Disease Epidemiology +6

Investigation of three clusters of COVID-19 in Singapore: implications for surveillance and response measures

Rachael Pung, Calvin J. Chiew, Barnaby Edward Young et al. · The Lancet · 2020 · 710 citations · Full text

Veterinary Medicine, Infectious Disease Control, Infectious Diseases +17

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)

Sean Wei Xiang Ong, Calvin J. Chiew, Li Wei Ang et al. · Clinical Infectious Diseases · 2021 · 421 citations · Full text

Veterinary Medicine, Infectious Diseases, Clinical Epidemiology +16

Clinical and Virological Features of SARS-CoV-2 Variants of Concern: A Retrospective Cohort Study Comparing B.1.1.7 (Alpha), B.1.315 (Beta), and B.1.617.2 (Delta)

Sean Wei Xiang Ong, Calvin J. Chiew, Li Wei Ang et al. · SSRN Electronic Journal · 2021 · 142 citations · Full text

Life Sciences, Infectious Diseases, Microbiology +17

Does incubation period of COVID-19 vary with age? A study of epidemiologically linked cases in Singapore

Wilnard Yeong Tze Tan, Lucía Wong, Yee‐Sin Leo et al. · Epidemiology and Infection · 2020 · 97 citations · Full text

Veterinary Medicine, Infectious Diseases, Epidemiology +13