Covid-19: Forecasting and Modelling
Debate between Edward Leigh and Maggie Throup(2 years, 3 months ago)
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Maggie Throup
I appreciate the point my hon. Friend is making, and I will come to a point that shows that models are just models; they are not predictions. Yes, they are sometimes proved wrong, but that is for different reasons. It could be that people change their behaviour as a result of the information that they get.
One example that I was about to come on to is a model in December that considered a range of assumptions for omicron’s intrinsic severity, ranging from between 10% and 100% of delta’s, in addition to the additional reductions in severity that vaccines and prior infection provide. Fortunately, we now know that severity is not at the upper end of this range, and models have been updated to reflect the evidence as it emerges. It is quite right that as new evidence emerges, models are adjusted to take that into consideration.
My hon. Friends the Members for Isle of Wight and for Penistone and Stocksbridge (Miriam Cates) raised concerns about the Government’s reliance on modelling advice, both more generally and from individual modelling groups. I want to reassure hon. Members that encouraging a diverse range of opinions, views and interpretations of the data is all part of the process. SPI-M-O and SAGE do not rely on just one model or group but look at advice from a number of independent and world-leading institutions. Robust scientific challenge has been vital to the quality of SAGE advice, with modelling papers regularly released online and the methodology and underlying assumptions clearly laid out for everyone to challenge and bring forward other evidence—it is all out in the open. Sir Patrick Vallance has said:
“No scientist would ever claim, in this fast-changing and unpredictable pandemic, to have a monopoly of wisdom on what happens next.”
As the chief medical officer has emphasised, hard data on what is actually happening to patients and to the population as a whole is an essential part of the advice given.
Modelling is a helpful tool, but it must be considered alongside what is happening to real people at home, in schools or in hospital beds. As SAGE has been so visible and transparent in its advice, some people may think that it is the only form of advice to the Government, but this is not the case. Modelling and other advice from SAGE has been invaluable during the Government’s response to covid-19, but it is only one of the many issues we consider. Modelling helps us to understand the possible risks from the spread of covid-19 but, ultimately, this needs to be balanced against other health, economic and societal impacts.
A number of hon. Members questioned the accuracy of modelling forecasts from SAGE. I would like to reiterate that such modelling outputs are scenarios, not predictions and forecasts. As such, comparisons between past scenarios and what happened in reality should be made with caution. Comparisons must be made on a like-for-like basis, and often they are not.
Maggie Throup
Yes, I will.
To be frank, what we are doing in many cases is comparing apples and pears. Nevertheless, past modelling has proved remarkably accurate in many cases.
My hon. Friend the Member for Newcastle-under-Lyme (Aaron Bell) said that lessons must be learned, and lessons will be learned. The hon. Member for Putney (Fleur Anderson) mentioned that as well.
In closing, I would like to take this opportunity to emphasise just how appreciative we should be, and are, to the scientists, academics and Government advisers for all their hard work over the last two years. It was fitting to see this rewarded in the new year’s honours list. Finally, I would like to thank hon. Members again for their participation in today’s debate and the opportunity to discuss the matter further.
Vaccination Strategy
Debate between Edward Leigh and Maggie Throup(2 years, 3 months ago)
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Maggie Throup
I also pay tribute to the staff at St Thomas’ Hospital. I visited the vaccination centre there and was really impressed by the way it is set up, with the paediatric side as well, and by all the volunteers who were there making sure that everyone felt comfortable about going forward. Some of the people there had thought for quite some time about taking the plunge and getting their first dose, so I thank the staff for their work.
The hon. Lady makes a good point when she says that we are not safe until everyone is safe. I reiterate our commitment to COVAX, not just through donating vaccines but financially as well. Just over a year ago, the first AstraZeneca vaccine jab in the world was given to a gentleman in Nottinghamshire. As a result of our collaboration with Oxford University and AstraZeneca, those jabs continue to be delivered at cost throughout the world. That is a really good outcome of the Government’s investment.
Sir Edward Leigh (Gainsborough) (Con)
Given its success, I believe we should now place our faith in the vaccination strategy and not in further controls. When I voted against plan B before Christmas, I said that more and more regulation creates more and more hypocrisy. Despite what is going on in Russia and the cost of living, we spent most of Prime Minister’s questions debating the fact that the Prime Minister wandered out of his house, where he lives and works, and had a drink with colleagues. The truth is that the Government should learn a lesson from this. We must sweep away every last vestige of telling people how to live their lives. We have had enough of it. The British people have had enough of it. These controls are actually making things worse—for example, forcing staff to isolate and putting our NHS at risk—so please, let us free the people.
Maggie Throup
I reassure my right hon. Friend that we will not have the restrictions in place for a day longer than necessary. He is aware that the current plan B restrictions will be reviewed on 26 January.