Rapid-antigen tests promised so much: a quick, cheap and easy way to tell if you were COVID positive so you could make a decision to help protect yourself, family and community.But in reality, it's far more complicated. The tests were initially hard to come by, expensive for some and the rollout was patchy.And now, add to that the fact that the coronavirus has continued to evolve - making it hard to tell if RATs can even detect COVID.So on this week's Coronacast, should we give a rat about RATs anymore? And why is it important that the tests do as they say?

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