Coronavirus: self-test kits are flying off the shelves in Hong Kong shops. But just how accurate are they?

Hong Kong’s spiralling Omicron-fuelled coronavirus crisis has sparked a run on rapid self-test kits for Covid-19, with many shops running out of stock or selling them at higher prices. But some tests have reportedly given false negative results, raising concerns about the quality of the kits.Here’s what you need to know before buying rapid antigen test kits.Why the rush for rapid antigen test kits?With infections surging and 176 places under compulsory testing notices in the week to Friday,…

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