Ministers hope to recruit 500,000 people by October, reports the Liverpool Echo.
The call follows the announcement of an agreement with pharmaceutical giants GlaxoSmithKline (GSK) and Sanofi Pasteur for 60 million doses of a potential Covid-19 vaccine.
Roger Connor, President of GSK Vaccines, said: “We believe this adjuvanted vaccine candidate has the potential to play an important role in overcoming the Covid-19 pandemic, both in the UK and globally.
“We thank the UK government for confirming purchase intent, which supports the significant investment we are already making as a company to scale up the development and production of this vaccine. ”
The government has now signed agreements for four separate variants of potential coronavirus vaccines with a total of 250 million doses.
Business Secretary Alok Sharma said, “Our scientists and researchers are rushing to find a safe and effective vaccine at a speed and scale never seen before.
“If this progress is truly remarkable, the fact remains that there is no guarantee.
“In the meantime, it’s important that we gain early access to a wide range of promising vaccine candidates, like GSK and Sanofi, to increase our chances of finding one that works so we can protect the public and save lives.
People can register for the NHS Covid-19 Vaccine Research Registry via https://www.nhs.uk/conditions/coronavirus-covid-19/research/coronavirus-vaccine-research/