Chris Hingston, 45, is an ICU doctor at the University Hospital of Wales in Cardiff, Wales.
On December 8, the father of two was one of the first people in the world to receive the Pfizer-BioNTech vaccine.
Doctors, nurses, nursing home workers, and people aged 80 and up in the UK are among the first to be immunized; 50 hospitals across the UK are administering the shots.
Pfizer-BioNTech plans to deliver 50 million doses across the world by the end of 2020.
This is Dr. Hingston's story, as told to freelance writer Claire Turrell.
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On December 8, I experienced my first step back to normality.
I was one of the first people in the world to receive the Pfizer-BioNTech COVID-19 vaccine. I work as a doctor in the ICU at the University Hospital of Wales in Cardiff, and I'm also an air ambulance doctor.
At the clinic where I had my jab, 225 people had their vaccination on the same day.
I had mixed feelings about being one of the first people to get the jab, as I would have liked more vulnerable people to get the vaccination before me, but I knew it would help protect my patients.
The hospital told me last Friday I could have the vaccine if I wished.
An appointment was scheduled for me the following Tuesday. I had my vaccination at the Cardiff and Vale Therapy Centre. It's a physiotherapy center, but its rehabilitation gym has been turned into a vaccination center. The atmosphere definitely felt unusual. It was the first time I have had a jab in a mass vaccination center with media watching. But I was excited.
Triage was carried out over the phone, and they checked my details once more when I arrived. The people who were having vaccinations seemed to be medical staff like myself. Plastic chairs were placed at the center of the room, and curtained cubicles around the walls. We were each allocated a numbered seat, and this correlated to the station where we had our jab.
I was given some leaflets to read about the vaccine, which was similar to the information I'd read on the website. Then the nurse called me over to a cubicle to give me the vaccination. She asked if I'd ever had reactions to vaccines before or if I had COVID-19 recently; they won't give the jab to anyone who has had COVID-19 within a month.
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The vaccination needs to be stored in ultra-cold temperatures, so the cold chain and logistics are incredibly challenging for the team.
However, a pharmacy had been created on site, so once the vial of vaccine had thawed, the pharmacists would immediately prepare the syringes for the nurses so the doses could be given to the patients.