Some people are still testing positive on an antigen test even after 7 days of self-isolation, according to a leading GP.
It comes as the government is considering reducing the length of time someone needs to self-isolate, which is currently set at 7 days.
Business groups welcome the suggestion, as they report many staff are out of work due to positive tests but are asymptomatic.
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Monaghan GP Illona Duffy says it could be reduced to 5 days, but people shouldn't be going into work if they're still testing positive:
