The one millionth dose of Covid-19 vaccine is due to be administered in Ireland today.
The Government had previously aimed to get 1.25 million doses given to people by the end of March - however there were supply issues.
Meanwhile, nine further Covid-19 related deaths have been recorded by the Department of Health and 443 new cases of the disease were reported.
The five-day moving average number of cases now stands at 463, which is almost 15 percent lower than last week.
Jack Lambert is a professor of infectious diseases - he believes the Government will struggle to meet it's vaccine target of 4 million doses by the end of June: