Coronavirus: what Singapore’s home test kits can teach Hong Kong about the ART of war on Covid-19

• The city state has a special weapon in its fight against the coronavirus: cheap and readily available rapid antigen tests that mean Covid sufferers can isolate at home
• From the US to Australia, various places are turning to home tests to battle outbreaks of the fast-spreading Omicron variant. Could they hold the key for Hong Kong too?