The United Kingdom has become the first country in the world to approve the Pfizer/BioNTech COVID-19 vaccine for use.
It has been given the go-ahead by the health regulator MHRA and will become available from next week.
Studies have shown the jab is 95% effective and works in all age groups.
The government has secured 40 million doses of the vaccine and patients need two doses.
Ten million doses are expected in the UK by the end of the year.
Royal Liverpool University Hospital trust is one of the sites that will be rolling out the vaccine.