After announcement of COVID-19 vaccine by Pfizer, United Kingdom has vaccinated its first national today directly and its a 90-year-old old woman from Northern Ireland become the world's first person to receive the vaccine outside trial conditions beginning the "vaccination program" in UK officially.

An early riser, Keenan received the vaccine at local hospital in Coventry, central England, on Tuesday, a week before she turns 91. Keenan is a former jewellery shop assistant who retired four years ago. She has a daughter, a son and four grandchildren. 

Ms Keenan said in an interview that "I feel so privileged to be the first person vaccinated against Covid-19," Also she added, "It's the best early birthday present I could wish for because it means I can finally look forward to spending time with my family and friends in the New Year after being on my own for most of the year."

British Health Secretary Matt Hancock and Stephen Powis, medical director for NHS England, said they both found it very emotional watching the vaccine programme rollout.

Britain has ordered 40 million doses of the Pfizer/BioNTech shot. As each person requires two doses, that is enough to vaccinate 20 million people in the country of 67 million.

About 800,000 doses are expected to be available within the first week, with care home residents and carers, the over-80s and some health service workers the top priority to get them.

However, The second patient to receive the jab in Britain was a man named William Shakespeare from Warwickshire.