Comparative effectiveness of 3 or 4 doses of mRNA and inactivated whole-virus vaccines against COVID-19 infection, hospitalization and severe outcomes among elderly in Singapore

por Tan, Celine Y., Chiew, Calvin J., Lee, Vernon J., Ong, Benjamin, Lye, David Chien, Tan, Kelvin Bryan
Publicado 2022

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

por Tan, Celine Y, Chiew, Calvin J, Pang, Deanette, Lee, Vernon J, Ong, Benjamin, Lye, David Chien, Tan, Kelvin Bryan
Publicado 2023

Vaccine effectiveness against Delta, Omicron BA.1, and BA.2 in a highly vaccinated Asian setting: a test-negative design study

por Tan, Celine Y., Chiew, Calvin J., Pang, Deanette, Lee, Vernon J., Ong, Benjamin, Lye, David Chien, Tan, Kelvin Bryan
Publicado 2023