In The Straits Times’ The Big Story, multimedia journalist Hairianto Dirman spoke to Dr Tan Teck Jack, CEO of Northeast Medical Group about Covid-19 self-test kits - and under what circumstances, and how frequent, should you self-test.

<p>In The Straits Times&rsquo; The Big Story, multimedia journalist Hairianto Dirman spoke to Dr Tan Teck Jack, CEO of Northeast Medical Group about Covid-19 self-test kits - and under what circumstances, and how frequent, should you self-test.</p>