A Co Down nurse is the first person in Northern Ireland to receive the coronavirus vaccine.
Sister Joanna Sloan, from Dundrum, is in charge of Covid vaccination for the Belfast Health and Social Care Trust.
She received the jab at the Royal Victoria Hospital in West Belfast on Tuesday morning.
The 28-year-old told PA Media: "I feel privileged and honoured and a little bit emotional that we have got here - very, very grateful."
She felt "apprehensive and nervous" before receiving the jab, but as it was administered she was thinking: "At last."
She added: "Through everything that healthcare workers, either in hospital or community ... losing family members, us losing colleagues, it felt like a huge moment and that this was the final hurdle in the fight against Covid.
"It did not feel any different than any other immunisation that I have had, I did not feel any pain."
Tweeting on Tuesday morning, Deputy First Minister Michelle O'Neill said: "The tide is starting to turn. The first person will receive the vaccine today. Brighter days ahead."
Chief Medical Officer, Dr Michael McBride, said today is a remarkable one.
"We can begin to look to the future with a degree of optimism, with this vaccine and other vaccines and more effective treatments," he added.
"Hopefully in the future Covid-19 will become a more manageable disease and we will begin the pathway to a more normal life."
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