Boris Johnson has confirmed that it will be months before most vulnerable people are vaccinated against Covid-19, despite the UK becoming the first western country to approve a jab.

Sir Simon Stevens, NHS England 's chief executive, said the rollout of the vaccine would start in larger centres due to logistical challanges with the Pfizer/BioNTech vaccine. Prof Jonathan Van-Tam added that restrictions would have to remain in place to avoid a 'tidal wave of infections'