A health expert has said a five-day quarantine for all arrivals into Ireland would be more realistic and ensure more compliance.
Professor of Experimental Immunology at Trinity College Kingston Mills said quarantine is imperative as there are concerns that more variants of the virus will emerge.
He said the variants first detected in South Africa, Brazil and California are causing concerns as some have a mutation in the virus spike protein that makes it more difficult for the antigen in vaccines to neutralise it.
Speaking on RTÉ's Brendan O'Connor programme, Prof Mills said a five-day quarantine for international travellers from all countries, with a ban on anyone entering without a negative PCR test and a mandatory follow-up test five days