A public health expert says the Indian variant is going to spread more easily in the population even among vaccinated people.
Tomas Ryan from I-SAG which advocates for Zero Covid says there's also increased risk of re-infection.
Covid-19 vaccines have been found to offer a high level of protection against the Indian variant in the UK - especially after two doses.
Associate Professor in Trinity, Tomas Ryan says flights from Britain must be restricted.
"Today we need to do everything that we can to discourage, prevent, reduce and quarantine all travel from Great Britain to Ireland over the next few weeks.
"We have to remember that right now 85% of the population of Ireland is not fully vaccinated, and 70% of the Irish population has not received any vaccinations."
