The World Health Organization's Special Envoy on Covid-19 said if people are in doubt about travelling abroad then they should not go.
Dr David Nabarro said it is better to be cautious than be exposed to a threat as the consequences "are just so terrible if things go wrong".
Speaking on RTÉ's Today with Sarah McInerney, Dr Nabarro said the issue of travel is challenging. "What you don't want to do is go somewhere and get sick and be in a healthcare system you don't know." He said understanding the level of disease and the performance of the response mechanisms is really important and people should not to get too alarmed over the fact that there is disagreement over travel at the moment.