Having received plaudits for its response to COVID-19, Singapore has nonetheless seen a resurgence in cases during recent days. Was our earlier success largely due to public policy, or could there be other biological factors involved, and what does this mean for us moving forward? — Since 2020, the COVID-19 pandemic has swept through the globe, infecting ~164 million people, and causing ~3.4 million deaths at the time of writing¹. As countries continue to grapple with the virus, these figures are unlikely to have peaked just yet. Barring the crisis in our foreign worker dormitories, my…