SINGAPORE-One reader sent in a poem to The Straits Times' Instagram account to show appreciation to Singapore's healthcare workers while others said it with drawing or a song. The submissions were in response to a call to send in tributes to doctors, nurses, food delivery workers and others battling the Covid-19 pandemic on the front lines. Since the# stcovidheroes campaign was launched on Instagram last Saturday( Oct 8), readers have sent in 45 unique submissions. Some of the tributes came from