UK Covid live: Boris Johnson says 'great strides' made with vaccinations but many are yet to be reached

Latest updates: just over 13 million people in the UK have been vaccinated, including 25% of adults in England and more than 90% of over-75s

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5.49pm GMT

At the press conference the Mirror's Mikey Smith asked about a Sage paper from July 2020. It was released at the end of last week, and it's here (pdf). It is worth reading because it set out four scenarios for the winter (ie, now) and, although not billed as a forecast, it turned out to be uncannily prescient. The paper was from SPI-M-O (the Scientific Pandemic Influenza Group on Modelling, Operational - a Sage sub group) and, describing one scenario, it said:

The early stages of exponential growth [in autumn 2020] would initially result in only a gradual increase in cases and so government and individuals might, at first, be unwilling to change policies and behaviour; this initial small increase in infections would likely happen in younger age groups (i.e. those under 50 years old) first, who are less likely to have severe symptoms. Widescale community transmission across all age groups would result, so much more stringent interventions would be needed than those required if measures were enacted earlier.

When universities reopen, large numbers of young people will come into close contact with one another. This is highly likely to result in large numbers of asymptomatic infections, which will then spread to local communities ...

There is a chance that transmission will be seeded by people returning from travel overseas and not quarantining correctly, or if a holiday destination is believed to be low risk" but, in reality, is not. Holidays taken within the UK may spread transmission to areas that have had relatively little transmission to date, especially in the south west of England.

5.31pm GMT

Q: When are you going to reimburse pharmacies for their additional costs during the pandemic? And how many are you happy to see close?

Johnson says he does not want to see any pharmacies close. They can play a really important role, he says.