The priority list for phase two of the coronavirus vaccine roll-out, which will see all under 50s invited for their jab, has been set out by the Joint Committee on Vaccination and Immunisation (JCVI).

People aged between 40 and 49 will be first to receive the vaccine in phase two.

The government hopes to complete phase one of the vaccination roll-out, which focuses on adults over 50-years-old, health and social care workers, and clinically vulnerable adults, by April 15.

Priority groups for phase two will be vaccinated in the following order:

– All those aged 40-49

– All those aged 30-39

– All those aged 18-29

Scientific advisers said the move to continue vaccinating in age order would “provide the greatest benefit in the shortest time”.

The JCVI had considered whether groups such as teachers and police officers should be vaccinated next, but concluded that the most effective way to prevent death and hospital admission is to carry on prioritising people by age.

Modelling studies also indicated that the speed of vaccine deployment is the most important factor in helping prevent severe illness and death, the JCVI said.

Vaccination targeting occupational groups (such as teachers) would be more complex to deliver and may slow down the vaccine programme, leaving some vulnerable people at higher risk for longer, the committee said.

Boris Johnson wants all adults in the UK to have been offered a jab by July 31

Professor Wei Shen Lim, Covid-19 chair for JCVI, said: “Vaccinations stop people from dying and the current strategy is to prioritise those who are more likely to have severe outcomes and die from Covid-19.

“The evidence is clear that the risk of hospitalisation and death increases with age.

“The vaccination programme is a huge success and continuing the age-based rollout will provide the greatest benefit in the shortest time, including to those in occupations at a higher risk of exposure.”

Operationally, simple and easy-to-deliver programmes are “critical for rapid deployment and high vaccine uptake”, the JCVI added.

Dr Mary Ramsay, head of immunisations at Public Health England (PHE), said: “Delivering a vaccination programme on this scale is incredibly complex and the JCVI’s advice will help us continue protecting individuals from the risk of hospitalisation at pace.

“The age-based approach will ensure more people are protected more quickly.

“It is crucial that those at higher risk – including men and BAME (black, Asian and minority ethnic communities) communities – are encouraged to take the vaccine, and that local health systems are fully engaged and reaching out to under-served communities to ensure they can access the vaccine.”

Meanwhile, The Queen has urged those hesitant about the coronavirus jab to be vaccinated and encouraged them to “think about other people rather than themselves”.

Positive attitudes towards the coronavirus vaccine have increased, with 94 per cent of adults saying they have either received the jab or would be likely to have it if offered, Office for National Statistics (ONS) figures show.

The Queen, who was inoculated in January, said after having the vaccine you felt “protected”, which she described as “important” during a video call with health leaders delivering the Covid-19 vaccine across the four nations.

Asked for “feedback” about her vaccination experience, she chuckled as she told the officials “it was quite harmless”.