Distribution of the Pfizer vaccine has been underway for months.
Both J&J and Novavax are awaiting UK approval, with Novavax expected as early as this month.
Valneva, which will manufacture the UK supply at a plant in Scotland, is currently entering the final stage of trials after positive results earlier this week.
GSK and Sanofi experienced delays after announcing their candidate had shown no impact on the over-50s in December, so they have refined the formulation in the hope to make it available in the final quarter of 2021.
On Wednesday, the Medicines and Healthcare products Regulatory Agency (MHRA) imposed that under 30s without underlying issues making them vulnerable to the virus should be offered another vaccine.
Vaccines breaking link between covid cases and deaths
liverpoolecho.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from liverpoolecho.co.uk Daily Mail and Mail on Sunday newspapers.
Covid-19 caution advised as R rate rises to 1
birminghammail.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from birminghammail.co.uk Daily Mail and Mail on Sunday newspapers.
Findings from the latest COVID-19 REACT-1 study published
gov.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from gov.uk Daily Mail and Mail on Sunday newspapers.
Coronavirus infections drop but R number remains at 1
pharmatimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from pharmatimes.com Daily Mail and Mail on Sunday newspapers.