A Fianna Fail Senator believes it prevented onward transmission over the Christmas period.
There's a call for wider use of regular antigen testing in the new year.
A Fianna Fail Senator says the number of people who used antigen testing effectively over the Christmas period prevented onward transmission.
Kildare's Fiona O'Loughlin says the tests have played a key role in altering behaviour in preventing the spread of Covid 19:
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